block: Make errp the last parameter of bdrv_img_create

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170421122710.15373-6-famz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
diff --git a/block.c b/block.c
index 1fbbb8d..7eda9a4 100644
--- a/block.c
+++ b/block.c
@@ -4161,8 +4161,8 @@
 
 void bdrv_img_create(const char *filename, const char *fmt,
                      const char *base_filename, const char *base_fmt,
-                     char *options, uint64_t img_size, int flags,
-                     Error **errp, bool quiet)
+                     char *options, uint64_t img_size, int flags, bool quiet,
+                     Error **errp)
 {
     QemuOptsList *create_opts = NULL;
     QemuOpts *opts = NULL;