Gmail.py Get the server response right

Now, the server response is in a list of strings. We need the second
string, so we need read the [1].

Previously, was a list of tuples, so, we used [0][1].

This patch is like the patch IMAP.py Get the server response right, but
now for Gmail.

Signed-off-by: Rodolfo García Peñas (kix) <kix@kix.es>

offlineimap/folder/Gmail.py

@@ -71,10 +71,10 @@ class GmailFolder(IMAPFolder):
         data = self._fetch_from_imap(str(uid), self.retrycount)
 
         # data looks now e.g.
-        # [('320 (X-GM-LABELS (...) UID 17061 BODY[] {2565}','msgbody....')]
-        # we only asked for one message, and that msg is in data[0].
-        # msbody is in [0][1].
-        body = data[0][1].replace("\r\n", "\n")
+        # ['320 (X-GM-LABELS (...) UID 17061 BODY[] {2565}','msgbody....']
+        # we only asked for one message, and that msg is in data[1].
+        # msbody is in [1].
+        body = data[1].replace("\r\n", "\n")
 
         # Embed the labels into the message headers
         if self.synclabels: