[glib] Document --output option of glib-mkenums

[Matthias Clasen <matthiasc src gnome org>]

commit 540374c80ef97b6eda921e750b5f173d0ba5bc90
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Oct 12 18:01:37 2016 -0400

    Document --output option of glib-mkenums

 docs/reference/gobject/glib-mkenums.xml |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gobject/glib-mkenums.xml b/docs/reference/gobject/glib-mkenums.xml
index 6baea6e..1dabe60 100644
--- a/docs/reference/gobject/glib-mkenums.xml
+++ b/docs/reference/gobject/glib-mkenums.xml
@@ -322,6 +322,13 @@ Print version and exit.
 </para></listitem>
 </varlistentry>
 
+<varlistentry>
+<term><option>--output=FILE</option></term>
+<listitem><para>
+Write output to FILE instead of stdout.
+</para></listitem>
+</varlistentry>
+
 </variablelist>
 </refsect1>