patch 8.2.3554: xxd has various way to exit

Problem:    Xxd has various way to exit.
Solution:   Add function to print error and exit. (closes #9035)
diff --git a/src/version.c b/src/version.c
index 8babe70..16a290b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3554,
+/**/
     3553,
 /**/
     3552,