Don't use -w in shebang line

This can cause warnings when PERL_PATH gets expanded to /usr/bin/env.
Patch by Adam Sampson, https://bugzilla.gnome.org/show_bug.cgi?id=641477

diff --git a/gobject/glib-mkenums.in b/gobject/glib-mkenums.in
index a3cf558..445b422 100755 (executable)
--- a/gobject/glib-mkenums.in
+++ b/gobject/glib-mkenums.in
@@ -1,5 +1,6 @@
-#!@PERL_PATH@ -w
+#!@PERL_PATH@
 
+user warnings;
 use File::Basename;
 use Safe;