bugfix: debug message in g.parser can cause error in wxGUI

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@52297 15284696-431f-4ddb-bdfa-cd5b030d7da7

general/g.parser/main.c

@@ -66,7 +66,10 @@ int main(int argc, char *argv[])
 
     filename = argv[1];
     argv++, argc--;
-    G_debug(2, "filename = %s", filename);
+    /* g.parser should write to stderr only in case of an error. */
+    /* G_debug output is not an error. */
+
+    /* G_debug(2, "filename = %s", filename); */
 
     ctx.fp = fopen(filename, "r");
     if (!ctx.fp) {