K 10
svn:author
V 5
lwhsu
K 8
svn:date
V 27
2020-02-10T20:53:59.559682Z
K 7
svn:log
V 189
Restore the behavior of allowing empty string in a string sysctl

Added as a special case to avoid unnecessary memory operations.

Reviewed by:	delphij
Sponsored by:	The FreeBSD Foundation

END