Add check-news to EXTRA_DIST

This was missing from commit 7385c51d.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Makefile.am

@@ -378,6 +378,7 @@ EXTRA_DIST = \
 	autotools/build-bash-completion \
 	autotools/check-python-code \
 	autotools/check-man \
+	autotools/check-news \
 	autotools/check-tar \
 	autotools/check-version \
 	autotools/gen-coverage \