gitignore: minor updates, add whitespace

Add new file from modern versions of GNU autotools, remove some
duplicates, and add some whitespace to make the file easier to read.

.gitignore

@@ -6,6 +6,7 @@
 .cdt*
 .project
 .gdb*
+
 .hgrc
 .hgignore
 .hg
@@ -81,6 +82,7 @@ libtool.m4
 lt~obsolete.m4
 ltdl.m4
 argz.m4
+ltargz.m4
 ltsugar.m4
 ltversion.m4
 ltoptions.m4
@@ -108,6 +110,7 @@ contrib/platform/intel/bend/*orcm*
 contrib/scaling/orte_no_op
 contrib/scaling/mpi_no_op
 contrib/scaling/mpi_barrier
+
 examples/hello_c
 examples/hello_cxx
 examples/hello_mpifh
@@ -128,12 +131,7 @@ examples/oshmem_max_reduction
 examples/oshmem_shmalloc
 examples/oshmem_strided_puts
 examples/oshmem_symmetric_data
-ompi/libltdl
+
-ompi/GPATH
-ompi/GRTAGS
-ompi/GYSMS
-ompi/GTAGS
-ompi/GSYMS
 ompi/contrib/vt/vt/aclocal.m4
 ompi/contrib/vt/vt/autom4te.cache
 ompi/contrib/vt/vt/config.h
@@ -209,10 +207,12 @@ ompi/contrib/vt/vt/vtlib/vt_mpireg.gen.c
 ompi/contrib/vt/vt/vtlib/vt_mpireg.gen.h
 ompi/contrib/vt/vt/vtlib/vt_mpiwrap.gen.c
 ompi/contrib/vt/wrappers/mpi*txt
+
 ompi/debuggers/*.in
 ompi/debuggers/dlopen_test
 ompi/debuggers/predefined_gap_test
 ompi/debuggers/predefined_pad_test
+
 ompi/include/mpi.h
 ompi/include/mpif-config.h
 ompi/include/mpif.h
@@ -227,6 +227,7 @@ ompi/include/mpif-sizeof.h
 ompi/include/mpi_portable_platform.h
 ompi/include/ompi/version.h
 ompi/include/ompi/frameworks.h
+
 ompi/mca/coll/basic/coll-basic-version.h*
 ompi/mca/coll/demo/config
 ompi/mca/coll/demo/coll_demo_config.h*
@@ -234,7 +235,9 @@ ompi/mca/coll/demo/coll-demo-version.h*
 ompi/mca/coll/ml/coll_ml_lex.c
 ompi/mca/coll/self/coll-self-version.h*
 ompi/mca/coll/sm/coll-sm-version.h*
+
 ompi/mca/crcp/ompi_crcp.7
+
 ompi/mca/io/romio/io-romio-version.h*
 ompi/mca/io/romio/romio/lib
 ompi/mca/io/romio/romio/localdefs
@@ -280,8 +283,10 @@ ompi/mca/io/romio/romio/test/hindexed
 ompi/mca/io/romio/romio/util/romioinstall
 ompi/mca/io/romio/src/romio_config.h
 ompi/mca/io/romio/src/romio_config.h.in
+
 ompi/mca/pml/v/autogen.vprotocols
 ompi/mca/pml/v/mca_vprotocol_config_output
+
 ompi/mca/rte/orte/ompi-ps.1
 ompi/mca/rte/orte/ompi-clean.1
 ompi/mca/rte/orte/mpiexec.1
@@ -290,44 +295,59 @@ ompi/mca/rte/orte/ompi-server.1
 ompi/mca/rte/orte/ompi-restart.1
 ompi/mca/rte/orte/ompi-checkpoint.1
 ompi/mca/rte/orte/mpirun.1
+
 ompi/mca/sharedfp/addproc/mca_sharedfp_addproc_control
+
 ompi/mpi/c/profile/p*.c
+
 ompi/mpi/fortran/configure-fortran-output.h
 ompi/mpi/fortran/mpiext/mpi-ext-module.F90
 ompi/mpi/fortran/mpiext/mpi-f08-ext-module.F90
+
 ompi/mpi/fortran/mpif-h/sizeof_f.f90
 ompi/mpi/fortran/mpif-h/profile/p*.c
 ompi/mpi/fortran/mpif-h/profile/psizeof_f.f90
+
 ompi/mpi/fortran/use-mpi-f08/constants.h
 ompi/mpi/fortran/use-mpi-f08/sizeof_f08.f90
 ompi/mpi/fortran/use-mpi-f08/sizeof_f08.h
 ompi/mpi/fortran/use-mpi-f08/profile/psizeof_f08.f90
+
 ompi/mpi/fortran/use-mpi-ignore-tkr/mpi-ignore-tkr-interfaces.h
 ompi/mpi/fortran/use-mpi-ignore-tkr/mpi-ignore-tkr-file-interfaces.h
 ompi/mpi/fortran/use-mpi-ignore-tkr/mpi-ignore-tkr-sizeof.f90
 ompi/mpi/fortran/use-mpi-ignore-tkr/mpi-ignore-tkr-sizeof.h
+
 ompi/mpi/fortran/use-mpi-tkr/fortran_kinds.sh
 ompi/mpi/fortran/use-mpi-tkr/fortran_sizes.h
 ompi/mpi/fortran/use-mpi-tkr/mpi_kinds.ompi_module
+
 ompi/mpi/java/java/mpi
 ompi/mpi/java/java/*.jar
 ompi/mpi/java/java/*.h
 ompi/mpi/java/java/doc
+
 ompi/mpi/man/man3/MPI*.3
 ompi/mpi/man/man3/OpenMPI.3
 ompi/mpi/man/man3/.dir-stamp
+
 ompi/mpi/tool/profile/*.c
+
 ompi/mpiext/affinity/c/OMPI_Affinity_str.3
 ompi/mpiext/affinity/c/example
+
 ompi/mpiext/example/tests/progress_c
 ompi/mpiext/example/tests/progress_mpifh
 ompi/mpiext/example/tests/progress_usempi
 ompi/mpiext/example/tests/progress_usempif08
+
 ompi/tools/mpisync/mpisync
 ompi/tools/mpisync/mpirun_prof
 ompi/tools/mpisync/ompi_timing_post
+
 ompi/tools/ompi_info/ompi_info
 ompi/tools/ompi_info/ompi_info.1
+
 ompi/tools/wrappers/mpic++-wrapper-data.txt
 ompi/tools/wrappers/mpicc-wrapper-data.txt
 ompi/tools/wrappers/mpifort-wrapper-data.txt
@@ -346,10 +366,13 @@ ompi/tools/wrappers/mpif77.1
 ompi/tools/wrappers/mpicxx-wrapper-data.txt
 ompi/tools/wrappers/mpif77-wrapper-data.txt
 ompi/tools/wrappers/mpif90-wrapper-data.txt
+
 opal/libltdl
+
 opal/asm/atomic-asm.S
 opal/asm/atomic-test
 opal/asm/generated/atomic-*.s
+
 opal/include/opal_config.h
 opal/include/opal_config.h.in
 opal/include/opal/install_dirs.h
@@ -358,24 +381,34 @@ opal/include/opal/frameworks.h
 opal/include/opal/sys/powerpc/atomic-32.s
 opal/include/opal/sys/powerpc/atomic-64.s
 opal/include/opal/sys/powerpc/atomic-32-64.s
+
 opal/mca/base/mca_base_parse_paramfile_lex.c
+
 opal/mca/common/libfabric/libfabric/config.h
+
 opal/mca/btl/openib/btl_openib_lex.c
+
 opal/mca/btl/usnic/usnic_btl_run_tests
+
 opal/mca/crs/opal_crs.7
+
 opal/mca/event/libevent*/libevent/config.h.in
 opal/mca/event/libevent*/libevent/config.h
 opal/mca/event/libevent*/libevent/libevent.pc
 opal/mca/event/libevent*/libevent/libevent_openssl.pc
 opal/mca/event/libevent*/libevent/libevent_pthreads.pc
 opal/mca/event/libevent*/libevent/include/event2/event-config.h
+
 opal/mca/hwloc/hwloc*/hwloc/include/hwloc/autogen/config.h
 opal/mca/hwloc/hwloc*/hwloc/include/private/autogen/config.h
+
 opal/mca/installdirs/config/install_dirs.h
+
 opal/tools/opal-checkpoint/opal-checkpoint
 opal/tools/opal-checkpoint/opal-checkpoint.1
 opal/tools/opal-restart/opal-restart
 opal/tools/opal-restart/opal-restart.1
+
 opal/tools/wrappers/opalcc-wrapper-data.txt
 opal/tools/wrappers/opalc++-wrapper-data.txt
 opal/tools/wrappers/opalCC-wrapper-data.txt
@@ -385,16 +418,24 @@ opal/tools/wrappers/opalc++.1
 opal/tools/wrappers/generic_wrapper.1
 opal/tools/wrappers/opal_wrapper.1
 opal/tools/wrappers/opal.pc
+
 opal/util/show_help_lex.c
 opal/util/keyval/keyval_lex.c
+
 orte/doxygen
+
 orte/include/orte/version.h
 orte/include/orte/frameworks.h
+
 orte/mca/filem/orte_filem.7
+
 orte/mca/rmaps/rank_file/rmaps_rank_file_lex.c
 orte/mca/rmaps/rank_file/rankfile_lex.c
+
 orte/mca/snapc/orte_snapc.7
+
 orte/mca/sstore/orte_sstore.7
+
 orte/test/mpi/abort
 orte/test/mpi/accept
 orte/test/mpi/bad_exit
@@ -451,6 +492,7 @@ orte/test/mpi/pconnect
 orte/test/mpi/thread_init
 orte/test/mpi/memcached-dummy
 orte/test/mpi/coll_test
+
 orte/test/system/radix
 orte/test/system/sigusr_trap
 orte/test/system/orte_no_op
@@ -504,6 +546,7 @@ orte/test/system/getenv_pmi
 orte/test/system/pmi_abort
 orte/test/system/opal_hwloc
 orte/test/system/opal_db
+
 orte/tools/orte-checkpoint/orte-checkpoint
 orte/tools/orte-checkpoint/orte-checkpoint.1
 orte/tools/orte-checkpoint/ompi-checkpoint.1
@@ -533,16 +576,20 @@ orte/tools/wrappers/ortecc.1
 orte/tools/wrappers/ortec++.1
 orte/tools/wrappers/orte_wrapper_script
 orte/tools/wrappers/orte.pc
+
 orte/util/hostfile/hostfile_lex.c
 orte/util/hostfile/orte_hosts.7
+
 oshmem/include/shmem.h
 oshmem/include/shmem_portable_platform.h
 oshmem/include/oshmem/frameworks.h
 oshmem/include/oshmem/version.h
-oshmem/mca/sshmem/.deps/
+
 oshmem/mca/sshmem/base/static-components.h
+
 oshmem/shmem/c/profile/p*.c
 oshmem/shmem/c/profile/*.c
+
 oshmem/shmem/fortran/libshmem_fortran.la
 oshmem/shmem/fortran/profile/pshmem_*_f.c
 oshmem/shmem/fortran/profile/pshpdeallc_f.c
@@ -551,6 +598,7 @@ oshmem/shmem/fortran/profile/pmy_pe_f.c
 oshmem/shmem/fortran/profile/pshpalloc_f.c
 oshmem/shmem/fortran/profile/pnum_pes_f.c
 oshmem/shmem/fortran/profile/pstart_pes_f.c
+
 oshmem/shmem/java/java/shmem.jar
 oshmem/shmem/java/java/doc
 oshmem/shmem/java/java/shmem_Constant.h
@@ -558,10 +606,13 @@ oshmem/shmem/java/java/shmem_ShMem.h
 oshmem/shmem/java/java/shmem
 oshmem/shmem/java/java/shmem_Addr.h
 oshmem/shmem/java/java/shmem_PSync.h
+
 oshmem/tools/oshmem_info/oshmem_info
 oshmem/tools/oshmem_info/oshmem_info.1
+
 oshmem/tools/wrappers/shmemcc-wrapper-data.txt
 oshmem/tools/wrappers/shmemfort-wrapper-data.txt
+
 test/asm/atomic_math_noinline
 test/asm/atomic_barrier
 test/asm/atomic_cmpset_noinline
@@ -600,6 +651,7 @@ test/datatype/ddt_raw
 test/datatype/opal_datatype_test
 test/datatype/position_noncontig
 test/datatype/unpack_ooo
+
 test/dss/dss_buffer
 test/dss/dss_copy
 test/dss/dss_size
@@ -608,17 +660,22 @@ test/dss/dss_release
 test/dss/dss_payload
 test/dss/dss_set_get
 test/dss/dss_print
+
 test/event/signal-test
 test/event/event-test
 test/event/time-test
+
 test/mpi/environment/chello
+
 test/runtime/parse_context
 test/runtime/sigchld
 test/runtime/start_shut
 test/runtime/opal_init_finalize
 test/runtime/orte_init_finalize
+
 test/threads/opal_condition
 test/threads/opal_thread
+
 test/util/aaa
 test/util/test_session_dir_out
 test/util/opal_os_path