patch 9.1.1366: v9.1.1364 unintentionally changed sign.c and sound.c

Problem:  v9.1.1364 unintentionally changed sign.c and sound.c
Solution: revert those parts, adjust the test (Hirohito Higashi)

closes: #17264

Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index e05f617..e5c4a68 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1366,
+/**/
     1365,
 /**/
     1364,