Tidy check_lintian's 'log' closure

Thanks Enrico for calling it out.
Signed-off-by: NChris Lamb <lamby@debian.org>

daklib/queue.py

@@ -1254,9 +1254,7 @@ class Upload(object):
 
         def log(*txt):
             if self.logger:
-                args = [self.pkg.changes_file, "check_lintian"]
-                args.extend(txt)
-                self.logger.log(args)
+                self.logger.log([self.pkg.changes_file, "check_lintian"] + list(txt))
 
         # We have output of lintian, this package isn't clean. Lets parse it and see if we
         # are having a victim for a reject.