Newline is required by some compilers at the end of a file.

This commit was SVN r12244.

orte/mca/pls/base/pls_base_general_support_fns.c

@@ -76,3 +76,4 @@ void orte_pls_base_purge_mca_params(char ***env)
     opal_setenv(var, "proxy", true, env);
     free(var);
 }
+