[PATCH] unshare: fix a --map-auto error message

[Chris Webb <chris@arachsys.com>]

When --map-auto is used by a user not listed in /etc/subuid, the error

  unshare: no line matching user "foo" in /etc/subuid: No error information

is emitted. Fix the stray ': No error information', correcting err() to
the intended errx().

Signed-off-by: Chris Webb <chris@arachsys.com>
---
 sys-utils/unshare.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys-utils/unshare.c b/sys-utils/unshare.c
index f5fe046a8..8313ee0a7 100644
--- a/sys-utils/unshare.c
+++ b/sys-utils/unshare.c
@@ -485,7 +485,7 @@ static struct map_range *read_subid_range(char *filename, uid_t uid)
 		return map;
 	}
 
-	err(EXIT_FAILURE, _("no line matching user \"%s\" in %s"),
+	errx(EXIT_FAILURE, _("no line matching user \"%s\" in %s"),
 	pw->pw_name, filename);
 }