Added ability to ignore commits in gitlog-to-news

Makefile.am

@@ -134,7 +134,7 @@ dist-hook: AUTHORS NEWS ChangeLog
 AUTHORS: FORCE
 	$(path_tools)/gitlog-to-authors > AUTHORS
 NEWS: FORCE
-	$(path_tools)/gitlog-to-news > NEWS
+	$(path_tools)/gitlog-to-news $(path_tools)/news-ignore > NEWS
 ChangeLog: FORCE
 	$(path_tools)/gitlog-to-changelog \
 		--strip-cherry-pick \

tools/gitlog-to-news

@@ -23,5 +23,6 @@
 git log --log-size --format="%H%n%B" \
   | grep -A1 '^log size \([5-9][0-9]\{2,\}\|[0-9]\{4,\}\)$' \
   | grep -o '^[a-z0-9]\+$' \
+  | grep -vFf "${1:-/dev/null}" \
   | xargs -n1 git log -n1 --date=rfc --no-notes \
   | awk '/^commit/ && NR!=1 { printf "\n\n" } { print }'

tools/news-ignore

@@ -0,0 +1 @@
+f9bb93c54d202974cd9c7e7934cfee81ef67bbae