[libgdata] docs: Add gdata-documents-utils.h to IGNORE_HFILES

[Philip Withnall <pwithnall src gnome org>]

commit 34d139a4d7b036c4bb65cb66c594ff4957e8a056
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Wed Jul 8 08:45:53 2015 +0100

    docs: Add gdata-documents-utils.h to IGNORE_HFILES
    
    It’s a private header and shouldn’t be in the documentation.

 docs/reference/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/Makefile.am b/docs/reference/Makefile.am
index 0eff964..ae2dbec 100644
--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -67,6 +67,7 @@ IGNORE_HFILES = \
        gdata-gd-feed-link.h \
        gdata-dummy-authorizer.c \
        gdata-dummy-authorizer.h \
+       gdata-documents-utils.h \
        $(NULL)
 
 # Images to copy into HTML directory.