qemu-img: Fix insignificant memleak

As soon as options is set in img_amend(), it needs to be freed before
the function returns. This leak is rather insignificant, as qemu-img
will exit subsequently anyway, but there's no point in not fixing it.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Message-id: 1414404776-4919-4-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

qemu-img.c

diff --git a/qemu-img.c b/qemu-img.c
index c7b394a..66a7eb4 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -2948,7 +2948,9 @@
     }
 
     if (optind != argc - 1) {
-        error_exit("Expecting one image file name");
+        error_report("Expecting one image file name");
+        ret = -1;
+        goto out;
     }
 
     flags = BDRV_O_FLAGS | BDRV_O_RDWR;