userns: Don't special case a count of 0

We can always use a count of 1 so there is no reason to have
a special case of a count of 0.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2017-10-31 15:54:32 -05:00
commit 11a8b9270e