K 10
svn:author
V 7
asomers
K 8
svn:date
V 27
2019-04-10T13:02:33.021497Z
K 7
svn:log
V 193
fix cache_lookup's documentation

cache_lookup's documentation got dislocated by r324378. Relocate and expand
it.

Reviewed by:	jhb, kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation

END