Merge ssize_t branch.
diff --git a/Python/pystrtod.c b/Python/pystrtod.c
index 3eccae8..83e792d 100644
--- a/Python/pystrtod.c
+++ b/Python/pystrtod.c
@@ -159,7 +159,7 @@
  **/
 char *
 PyOS_ascii_formatd(char       *buffer, 
-		   int         buf_len, 
+		   size_t      buf_len, 
 		   const char *format, 
 		   double      d)
 {