[glib] mkenums: Add missing --fprod handler

[Emmanuele Bassi <ebassi src gnome org>]

commit 4f17d1049f49d8d9e880b4e8a34cc62e0da9092e
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Jul 17 11:15:06 2017 +0100

    mkenums: Add missing --fprod handler
    
    We are not generating the template for the --fprod command line
    argument.

 gobject/glib-mkenums.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gobject/glib-mkenums.in b/gobject/glib-mkenums.in
index 9ae036b..ca2baa9 100755
--- a/gobject/glib-mkenums.in
+++ b/gobject/glib-mkenums.in
@@ -341,6 +341,7 @@ symprefix += options.symprefix
 fhead = ''.join([unescape_cmdline_args(x) for x in options.fhead]) + fhead
 vhead = ''.join([unescape_cmdline_args(x) for x in options.vhead]) + vhead
 
+fprod += ''.join([unescape_cmdline_args(x) for x in options.fprod])
 eprod += ''.join([unescape_cmdline_args(x) for x in options.eprod])
 vprod += ''.join([unescape_cmdline_args(x) for x in options.vprod])