[liveleak] Improve regex for restoring original video URL

youtube_dl/extractor/liveleak.py

@@ -95,7 +95,7 @@ class LiveLeakIE(InfoExtractor):
             'url': s['file'],
         } for i, s in enumerate(sources)]
         for i, s in enumerate(sources):
-            orig_url = re.sub(r'.h264_.+\.mp4', '', s['file'])
+            orig_url = re.sub(r'\.h264_.+?\.mp4', '', s['file'])
             if s['file'] != orig_url:
                 formats.append({
                     'format_id': 'original-%s' % i,