patch 8.1.1375: without "TS" in 'shortmess' get a hit-enter prompt often

Problem:    Without "TS" in 'shortmess' get a hit-enter prompt often.
Solution:   Always truncate the search message.  Also avoid putting it in the
            message history. (closes #4413)
diff --git a/src/version.c b/src/version.c
index e8da844..0fd12fe 100644
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1375,
+/**/
     1374,
 /**/
     1373,