d.mon: fix key conflict introduced in https://trac.osgeo.org/grass/changeset/64467, sfile flag renamed to '-g'

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@64468 15284696-431f-4ddb-bdfa-cd5b030d7da7

display/d.mon/main.c

@@ -113,7 +113,7 @@ int main(int argc, char *argv[])
     cmd_flag->guisection = _("Print");
 
     sfile_flag = G_define_flag();
-    sfile_flag->key = 's';
+    sfile_flag->key = 'g';
     sfile_flag->description =
 	_("Print path to support files of currently selected monitor and exit");