--- /tmp/cgi.py	2014-06-10 12:18:31.029412177 +0200
+++ /usr/lib/python3.3/cgi.py	2014-06-10 13:45:49.015208848 +0200
@@ -839,7 +839,7 @@
             if not line:
                 self.done = -1
                 break
-            if line.endswith(b"--") and last_line_lfend:
+            if line.startswith(b"--") and last_line_lfend:
                 strippedline = line.strip()
                 if strippedline == next_boundary:
                     break