patch 8.2.4368: Amiga: a few compiler warnings

Problem:    Amiga: a few compiler warnings.
Solution:   Adjust #ifdefs. Add "UNUSED". (Ola Söder, closes #9756,
            closes #9757)
diff --git a/src/version.c b/src/version.c
index 9daa359..5444279 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4368,
+/**/
     4367,
 /**/
     4366,