patch 9.0.0879: unnecessary nesting in makefile

Problem:    Unnecessary nesting in makefile.
Solution:   Join "else" and "ifeq". (Ken Takata, closes #11547)
diff --git a/src/version.c b/src/version.c
index f294ed5..acd8922 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    879,
+/**/
     878,
 /**/
     877,