INSTALL: minor refresh of text

INSTALL

@@ -8,7 +8,7 @@ Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
                         University of Stuttgart.  All rights reserved.
 Copyright (c) 2004-2005 The Regents of the University of California.
                         All rights reserved.
-Copyright (c) 2008-2014 Cisco Systems, Inc.  All rights reserved.
+Copyright (c) 2008-2015 Cisco Systems, Inc.  All rights reserved.
 $COPYRIGHT$
 
 Additional copyrights may follow
@@ -65,7 +65,7 @@ require additional command ling flags when running configure.  See the
 README file for more details.  Note that VPATH builds are fully
 supported.  For example:
 
-shell$ gtar zxf openmpi-X.Y.Z.tar.gz
+shell$ tar xf openmpi-X.Y.Z.tar.gz
 shell$ cd openmpi-X.Y.Z
 shell$ mkdir build
 shell$ cd build
@@ -81,9 +81,9 @@ shell$ make -j 4 all
 [...lots of output...]
 shell$ make install
 
-Parallel make is generally only helpful in the build phase; the
-installation process is mostly serial and does not benefit much from
-parallel make.
+Parallel make is generally only helpful in the build phase (i.e.,
+"make all"); the installation process (i.e., "make install") is mostly
+serial and does not benefit much from parallelization.
 
 
 Compiling MPI Applications
@@ -92,11 +92,10 @@ Compiling MPI Applications
 MPI applications should be compiled using the Open MPI "wrapper"
 compilers:
 
-C programs:   mpicc your-code.c
-C++ programs: mpiCC your-code.cc    or
-              mpic++ your-code.cc   (for case-insensitive filesystems)
-F77 programs: mpif77 your-code.f
-F90 programs: mpif90 your-code.f90
+C programs:       mpicc your-code.c
+C++ programs:     mpiCC your-code.cc    or
+                  mpic++ your-code.cc   (for case-insensitive filesystems)
+Fortran programs: mpifort your-code.f90
 
 These compilers simply add various command line flags (such as -lmpi)
 and invoke a back-end compiler; they are not compilers in themselves.