K 10
svn:author
V 5
jamie
K 8
svn:date
V 27
2022-03-28T23:42:22.859136Z
K 7
svn:log
V 489
mfc jail: handle jailsys parameters in modification permission test

Avoid a null dereference when a value-less jailsys parameter is passed
to "jail -m".  There was already code to handle boolean parameters,
but in reality any parameter could be passed without a value.

PR:             262471
Reported by:    jcaplan at blackberry.com

(cherry picked from commit 8f1543785f77086494c73310ba8f5d09b61ff7eb)

Git Hash:   f059a2c832f8cff0d3c0db142a3216b13b4c0480
Git Author: jamie@FreeBSD.org
END