patch 8.1.2234: get_short_pathname() fails depending on encoding

Problem:    get_short_pathname() fails depending on encoding.
Solution:   Use the wide version of the library function. (closes #5129)
diff --git a/src/version.c b/src/version.c
index 0e92901..324f40d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2234,
+/**/
     2233,
 /**/
     2232,