Work around unicode titles not working with resuming

Before, you would get UnicodeWarning: Unicode unequal comparison failed to convert both arguments to Unicode - interpreting them as being unequal. The %s versus {} change was needed because otherwise you would get UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-5: ordinal not in range(128). There is probably a better way of solving that, but this one does work.

dumpgenerator.py

@@ -730,7 +730,7 @@ def generateXMLDump(config={}, titles=[], start=None, session=None):
 
     if config['xmlrevisions']:
         if start:
-            print("WARNING: will try to start the download from title: {}".format(start))
+            print("WARNING: will try to start the download from title: %s" % start)
             xmlfile = open('%s/%s' % (config['path'], xmlfilename), 'a')
         else:
             print 'Retrieving the XML for every page from the beginning'
@@ -1160,7 +1160,7 @@ def reverse_readline(filename, buf_size=8192, truncate=False):
                         fh.truncate
                         raise StopIteration
                     else:
-                        yield segment
+                        yield segment.decode('utf-8')
             segment = lines[0]
             for index in range(len(lines) - 1, 0, -1):
                 if truncate and '</page>' in segment:
@@ -1169,8 +1169,8 @@ def reverse_readline(filename, buf_size=8192, truncate=False):
                     fh.truncate
                     raise StopIteration
                 else:
-                    yield lines[index]
-        yield segment
+                    yield lines[index].decode('utf-8')
+        yield segment.decode('utf-8')
 
 def saveImageNames(config={}, images=[], session=None):
     """ Save image list in a file, including filename, url and uploader """