[gnome-sdk-images] Cleanup gtk-doc

[Alexander Larsson <alexl src gnome org>]

commit 14413cd8c4638297f93cede17077585a7353db6c
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Mar 9 14:35:57 2017 +0100

    Cleanup gtk-doc

 org.gnome.Sdk.json.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index 1631895..910a8b4 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -31,6 +31,7 @@
     "cleanup": [ "/cache",
                  "/man",
                  "/share/man",
+                 "/share/gtk-doc",
                  "/lib/systemd",
                  "*.la", "*.a"],
     "cleanup-commands": [ "touch -d @0 /usr/share/fonts",