[gnome-shell/gnome-3-24] docs: Fix typo

[Florian Müllner <fmuellner src gnome org>]

commit 6f2fc9fe14ddbbc742f0177f9ea23da4ff42772e
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Apr 27 18:29:45 2017 +0200

    docs: Fix typo

 docs/reference/shell/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/shell/Makefile.am b/docs/reference/shell/Makefile.am
index 0733d78..4527ef6 100644
--- a/docs/reference/shell/Makefile.am
+++ b/docs/reference/shell/Makefile.am
@@ -125,7 +125,7 @@ EXTRA_DIST +=
 # Files not to distribute
 # for --rebuild-types in $(SCAN_OPTIONS), e.g. $(DOC_MODULE).types
 # for --rebuild-sections in $(SCAN_OPTIONS) e.g. $(DOC_MODULE)-sections.txt
-DISTCLEANFILES = $(DOC_MODULES).types
+DISTCLEANFILES = $(DOC_MODULE).types
 
 # Comment this out if you want 'make check' to test you doc status
 # and run some sanity checks