[nongnu] elpa/dockerfile-mode fbe1353f3f 012/104: add ONBUILD

[ELPA Syncer]

branch: elpa/dockerfile-mode
commit fbe1353f3fb4daa3eae224b737af92250761ec58
Author: Victor Vieux <victor.vieux@docker.com>
Commit: Victor Vieux <victor.vieux@docker.com>

    add ONBUILD
---
 dockerfile-mode.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockerfile-mode.el b/dockerfile-mode.el
index cdd49fd284..8c85246e2a 100644
--- a/dockerfile-mode.el
+++ b/dockerfile-mode.el
@@ -36,7 +36,7 @@
   "Runs docker builder command with sudo.")
 
 (defvar dockerfile-font-lock-keywords
-  `(,(cons (rx line-start
+  `(,(cons (rx (or line-start "onbuild ")
                (group (or "from" "maintainer" "run" "cmd" "expose" "env"
                          "add" "entrypoint" "volume" "user" "workdir"))
                word-boundary)