updated for version 7.4.139

Problem:    Crash when using :cd in autocommand. (François Ingelrest)
Solution:   Set w_localdir to NULL after freeing it. (Dominique Pelle)

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    139,
 /**/
     138,
 /**/