patch 8.0.0601: no test coverage for :spellrepall

Problem:    No test coverage for :spellrepall.
Solution:   Add a test. (Dominique Pelle, closes #1717)
diff --git a/src/version.c b/src/version.c
index 7262a3d..202ce95 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    601,
+/**/
     600,
 /**/
     599,