[rygel] examples: Fix unblacklisting in mx-info

[Jens Georg <jensgeorg src gnome org>]

commit 32d6924cba1cf4e9b7935bc8672151d6f356cdc1
Author: Jens Georg <mail jensge org>
Date:   Sun Aug 18 12:45:25 2019 +0200

    examples: Fix unblacklisting in mx-info

 examples/mx-info | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/examples/mx-info b/examples/mx-info
index 30efc10a..9c245a8a 100755
--- a/examples/mx-info
+++ b/examples/mx-info
@@ -66,6 +66,7 @@ SELECT b.timestamp FROM blacklist b WHERE b.uri = :uri
 """
 
 BLACKLIST_TEMPLATE = 'File %(uri)s was blacklisted on %(date)s'
+UNBLACKLIST_QUERY = 'DELETE FROM blacklist where uri = :uri'
 
 def ensure_uri(string):
     if not string.startswith ('file://'):
@@ -97,7 +98,7 @@ if not has_blacklist and args.unblacklist:
     sys.exit (1)
 
 if has_blacklist and args.unblacklist:
-    for arg in args.uris:
+    for uri in args.uris:
         c.execute (UNBLACKLIST_QUERY, { 'uri' : uri })
 else:
     for uri in args.uris: