Fix some C++ style comments in C code

This commit was SVN r962.

src/mca/pml/teg/src/pml_teg_sendreq.h

@@ -46,12 +46,12 @@ static inline int mca_pml_teg_send_request_start(
     size_t first_fragment_size = ptl->ptl_first_frag_size;
     int flags, rc;
 
-    // start the first fragment
+    /* start the first fragment */
     if(req->super.req_length <= first_fragment_size) {
         first_fragment_size = req->super.req_length;
         flags = (req->req_send_mode == MCA_PML_BASE_SEND_SYNCHRONOUS) ? MCA_PTL_FLAGS_ACK_MATCHED : 0;
     } else {
-        // require match for first fragment of a multi-fragment message or if synchronous send
+        /* require match for first fragment of a multi-fragment message or if synchronous send */
         flags = MCA_PTL_FLAGS_ACK_MATCHED;
     }
 

src/mca/ptl/base/ptl_base_match.c

@@ -309,7 +309,6 @@ static mca_ptl_base_recv_request_t *mca_ptl_base_check_wild_receives_for_match(
             break;
         }
     }
-    //
 
     return return_match;
 }

src/mpi/c/group_range_excl.c

@@ -109,7 +109,7 @@ int MPI_Group_range_excl(MPI_Group group, int n_triplets, int ranges[][3],
                 elements_int_list[index] = new_group_size;
                 index += stride;
                 new_group_size++;
-            }			// end while loop
+            }			/* end while loop */
 
         } else {
             /* first_rank == last_rank */

src/mpi/c/group_range_incl.c

@@ -109,9 +109,9 @@ int MPI_Group_range_incl(MPI_Group group, int n_triplets, int ranges[][3],
                 elements_int_list[index] = new_group_size;
                 index += stride;
                 new_group_size++;
-            }                   // end while loop
+            }                   /* end while loop */
 
-        } else {                // first_rank == last_rank
+        } else {                /* first_rank == last_rank */
 
             index = first_rank;
             if (elements_int_list[index] != -1) {