msg minor fix (backport)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@62779 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/parser_standard_options.c

@@ -601,7 +601,7 @@ struct Option *G_define_standard_option(int opt)
         Opt->key_desc = "name";
         Opt->required = YES;
         Opt->gisprompt = "old,dir,dir";
-        Opt->description = _("Name to input directory");
+        Opt->description = _("Name of input directory");
         break;
 
     case G_OPT_M_UNITS: