Merge pull request ps0uth#63 from rraub/55-fix-comments

incorrect boolean logic, fixed column comment conditional

Author: kworr

mysql2pgsql/lib/postgres_writer.py

@@ -140,7 +140,7 @@ def table_comments(self, table):
         return comments.getvalue() 
 
     def column_comment(self, tablename, column):
-      if not column['comment']: 
+      if column['comment']: 
         return (' COMMENT ON COLUMN %s.%s is %s;' % ( tablename, column['name'], QuotedString(column['comment']).getquoted()))
       else: 
         return ''