Reformat offlineimap/folder/IMAP.py

Add some spaces, remove lines,... now format is better (lintian).

offlineimap/repository/IMAP.py

@@ -509,12 +509,16 @@ class IMAPRepository(BaseRepository):
             def cmp2key(mycmp):
                 """Converts a cmp= function into a key= function
                 We need to keep cmp functions for backward compatibility"""
+
                 class K(object):
                     def __init__(self, obj, *args):
                         self.obj = obj
+
                     def __cmp__(self, other):
                         return mycmp(self.obj.getvisiblename(), other.obj.getvisiblename())
+
                 return K
+
             retval.sort(key=cmp2key(self.foldersort))
 
         self.folders = retval
@@ -580,6 +584,7 @@ class IMAPRepository(BaseRepository):
         finally:
             self.imapserver.releaseconnection(imapobj)
 
+
 class MappedIMAPRepository(IMAPRepository):
     def getfoldertype(self):
         return folder.UIDMaps.MappedIMAPFolder