patch 8.1.2402: typos and other small things

Problem:    Typos and other small things.
Solution:   Small fixes.
diff --git a/src/version.c b/src/version.c
index b25cda4..8f098f2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2402,
+/**/
     2401,
 /**/
     2400,