K 10
svn:author
V 7
delphij
K 8
svn:date
V 27
2014-12-18T20:23:19.952551Z
K 7
svn:log
V 175
Sync with NetBSD, mainly address NetBSD bug #43355:

Fix valid_format() to be more careful about allowing only valid
printf formats.

Obtained from:	NetBSD
MFC after:	2 weeks

END