patch 8.2.3553: xxd test fails on MS-Windows

Problem:    Xxd test fails on MS-Windows.
Solution:   Split shell command in two.
diff --git a/src/version.c b/src/version.c
index 0143761..8babe70 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3553,
+/**/
     3552,
 /**/
     3551,