vquota(8): document a limit of 0 means no check

diff --git a/sbin/vquota/vquota.8 b/sbin/vquota/vquota.8
index 92b368b..28027b7 100644 (file)
--- a/sbin/vquota/vquota.8
+++ b/sbin/vquota/vquota.8
@@ -107,6 +107,9 @@ bytes for the filesystem mounted under
 and the specified
 .Ar group .
 .El
+.Pp
+A limit of 0 effectively means checks are disabled.
+.El
 .
 .Sh EXAMPLES
 The following is an example of a typical usage