updated for version 7.4.356

Problem:    Mercurial does not ignore memfile_test. (Daniel Hahler)
Solution:   Add memfile_test to ignored files, remove trailing spaces.

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    356,
 /**/
     355,
 /**/