updated for version 7.3.159

Problem:    Using uninitialized pointer when out of memory.
Solution:   Check for NULL return value.

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    159,
 /**/
     158,
 /**/