patch 8.2.4340: Amiga: mch_can_exe() is not implemented

Problem:    Amiga: mch_can_exe() is not implemented.
Solution:   Implement mch_can_exe() for Amiga OS 4. (Ola Söder, closes #9731)
diff --git a/src/version.c b/src/version.c
index 6b6d3cc..42e6a4c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4340,
+/**/
     4339,
 /**/
     4338,