patch 8.2.0005: duplication in version info

Problem:    Duplication in version info.
Solution:   Use preprocessor string concatenation. (Ken Takata, closes #5357)
diff --git a/src/version.c b/src/version.c
index c979eeb..cddf770 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5,
+/**/
     4,
 /**/
     3,