miro: Fix parsing of youtube feeds.

Youtube feeds now don't append a "sig" query string argument anymore, so
all those feeds would fail without this patch. For the latter, a pull
request already exists on upstream at pculture/miro#428, so I guess we
can drop our patch upon release of the next new upstream bugfix release.

Signed-off-by: aszlig <[e-mail]>

pkgs/applications/video/miro/default.nix

···
   patches = [ ./gconf.patch ];
 
   postPatch = ''
+    patch -p1 -d .. < "${./youtube-feeds.patch}"
+
     sed -i -e 's/\$(shell which python)/python/' Makefile
     sed -i -e 's|/usr/bin/||' -e 's|/usr||' \
            -e 's/BUILD_TIME[^,]*/BUILD_TIME=0/' setup.py

pkgs/applications/video/miro/youtube-feeds.patch

···
+diff --git a/lib/flashscraper.py b/lib/flashscraper.py
+index 323dbe4..d203b78 100644
+--- a/lib/flashscraper.py
++++ b/lib/flashscraper.py
+@@ -134,9 +134,7 @@ def _youtube_callback_step2(info, video_id, callback):
+         # strip url= from url=xxxxxx, strip trailer.  Strip duplicate params.
+         for fmt, stream_map_data in zip(fmt_list, stream_map):
+             stream_map = cgi.parse_qs(stream_map_data)
+-            url_base = stream_map['url'][0]
+-            sig_part = '&signature=' + stream_map['sig'][0]
+-            fmt_url_map[fmt] = url_base + sig_part
++            fmt_url_map[fmt] = stream_map['url'][0]
+ 
+         title = params.get("title", ["No title"])[0]
+         try: