Fix typo in previous commit

I fixed this when I tested the patch, but apparently forgot to commit
the typo fix into my local git tree. ".ORDER" -> ".ORDER:".

MFC after: 5 minutes
Fixes: 187d696a0aa0 "bsd.progs.mk: Create directories first"
Sponsored by: Amazon

(cherry picked from commit 19597c02338a01bf1ab3b25409528a1765b13a74)