Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
generator expressions (x for x, in ... ) works again.

Sigh, I only fixed for loops the first time, not list comps and genexprs too.
I couldn't find any more unpacking cases where there is a similar bug lurking.
diff --git a/Python/import.c b/Python/import.c
index da9de8b..a0c5055 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -64,9 +64,10 @@
        Python 2.5b3: 62111 (fix wrong code: x += yield)
        Python 2.5c1: 62121 (fix wrong lnotab with for loops and
        			    storing constants that should have been removed)
+       Python 2.5c2: 62131 (fix wrong code: for x, in ... in listcomp/genexp)
 .
 */
-#define MAGIC (62121 | ((long)'\r'<<16) | ((long)'\n'<<24))
+#define MAGIC (62131 | ((long)'\r'<<16) | ((long)'\n'<<24))
 
 /* Magic word as global; note that _PyImport_Init() can change the
    value of this global to accommodate for alterations of how the