patch 9.0.0225: using freed memory with multiple line breaks in expression

Problem:    Using freed memory with multiple line breaks in expression.
Solution:   Free eval_tofree later.

src/version.c

@@ -731,6 +731,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    225,
 /**/
     224,
 /**/