patch 9.0.0957: tests fail without the terminal feature

Problem:    Tests fail without the terminal feature.
Solution:   Move functions to another utility script.
diff --git a/src/version.c b/src/version.c
index a00a989..5d6a2a4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    957,
+/**/
     956,
 /**/
     955,