Fix HTML escape of "'".

jenkins_backend/sync_jobs.py

@@ -13,7 +13,7 @@ def html_escape(string):
     """
     Function for escaping certain symbols to XML-compatible sequences.
     """
-    html_codes = [("'", '''), ('"', '"'), ('&', '&'),
+    html_codes = [("'", '''), ('"', '"'), ('&', '&'),
                   ('<', '&lt;'), ('>', '&gt;')]
     for i in html_codes:
         string = string.replace(i[0], i[1])