Standardize on the vi editing directives being on the first line.
diff --git a/libpwdgrp/pwd_grp_internal.c b/libpwdgrp/pwd_grp_internal.c
index 9cb1d30..39c11f6 100644
--- a/libpwdgrp/pwd_grp_internal.c
+++ b/libpwdgrp/pwd_grp_internal.c
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
 /*  Copyright (C) 2003     Manuel Novoa III
  *
  *  Licensed under GPL v2, or later.  See file LICENSE in this tarball.