patch 8.0.0226: test for patch 8.0.0224 missing CR characters

Problem:    The test for patch 8.0.0224 misses the CR characters and passes
            even without the fix. (Christian Brabandt)
Solution:   Use double quotes and \<CR>.
diff --git a/src/version.c b/src/version.c
index 6020472..7087f64 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    226,
+/**/
     225,
 /**/
     224,