except imapobj.abort() -> except imapobj.abort

When checking for the IMAP4.abort() exception, we need of course to
perform:

except imapobj.abort:

and not

except imapobj.abort():

Thanks to Johannes Stezenbach <js@sig21.net> for pointing to the glitch.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>

offlineimap/folder/IMAP.py

@@ -209,7 +209,7 @@ class IMAPFolder(BaseFolder):
                     res_type, data = imapobj.uid('fetch', str(uid),
                                                  '(BODY.PEEK[])')
                     fails_left = 0
-                except imapobj.abort(), e:
+                except imapobj.abort, e:
                     # Release dropped connection, and get a new one
                     self.imapserver.releaseconnection(imapobj, True)
                     imapobj = self.imapserver.acquireconnection()