git: sbin/mount_hammer2: Include <errno.h> for errno

[Tomohiro Kusumi]

commit 168b29ce6255b12255d90205e380805a230a2192
Author: Tomohiro Kusumi <kusumi.tomohiro at gmail.com>
Date:   Sat Aug 17 00:10:21 2019 +0900

    sbin/mount_hammer2: Include <errno.h> for errno
    
    It's currently included via <dmsg.h>.

Summary of changes:
 sbin/mount_hammer2/mount_hammer2.c | 1 +
 1 file changed, 1 insertion(+)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/168b29ce6255b12255d90205e380805a230a2192


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