[evolution] Ignore test-html-editor-units-bugs.h when building reference manual

[Milan Crha <mcrha src gnome org>]

commit a75ecdf87b2ee97e32f86b0a8416b36577882694
Author: Milan Crha <mcrha redhat com>
Date:   Mon Aug 29 14:59:29 2016 +0200

    Ignore test-html-editor-units-bugs.h when building reference manual

 doc/reference/evolution-util/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/doc/reference/evolution-util/Makefile.am b/doc/reference/evolution-util/Makefile.am
index 372299a..7926c35 100644
--- a/doc/reference/evolution-util/Makefile.am
+++ b/doc/reference/evolution-util/Makefile.am
@@ -48,6 +48,7 @@ IGNORE_HFILES = \
        gal-a11y-e-tree.h \
        gal-a11y-factory.h \
        gal-a11y-util.h \
+       test-html-editor-units-bugs.h \
        test-html-editor-units-utils.h \
        test-keyfile-settings-backend.h \
        $(NULL)