Author: cem
Date: Wed Jul 22 22:53:40 2015
New Revision: 285804
URL: https://svnweb.freebsd.org/changeset/base/285804

Log:
  mount_nfs: Be more clear on nmount(2) error with errmsg unset
  
  Differential Revision:        https://reviews.freebsd.org/D3147
  Reviewed by:  rmacklem
  Approved by:  markj (mentor)
  MFC after:    2 weeks
  Sponsored by: EMC / Isilon Storage Division

Modified:
  head/sbin/mount_nfs/mount_nfs.c

Modified: head/sbin/mount_nfs/mount_nfs.c
==============================================================================
--- head/sbin/mount_nfs/mount_nfs.c     Wed Jul 22 19:58:21 2015        
(r285803)
+++ head/sbin/mount_nfs/mount_nfs.c     Wed Jul 22 22:53:40 2015        
(r285804)
@@ -476,7 +476,8 @@ main(int argc, char *argv[])
        build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg));
 
        if (nmount(iov, iovlen, 0))
-               err(1, "%s, %s", mntpath, errmsg);
+               err(1, "nmount: %s%s%s", mntpath, errmsg[0] ? ", " : "",
+                   errmsg);
 
        exit(0);
 }
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