patch 7.4.2106
Problem:    Clang warns about missing field in initializer.
Solution:   Define COMMA and use it.  (Kazunobu Kuriyama)
diff --git a/src/version.c b/src/version.c
index 79616c6..cdcb426 100644
--- a/src/version.c
+++ b/src/version.c
@@ -759,6 +759,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2106,
+/**/
     2105,
 /**/
     2104,