patch 9.0.1580: CI: indent test hangs on FreeBSD

Problem:    CI: indent test hangs on FreeBSD.
Solution:   Set 'nomore' when running the indent tests. (Ozaki Kiichi,
            closes #12446)
diff --git a/src/version.c b/src/version.c
index ad595c6..da4eed7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1580,
+/**/
     1579,
 /**/
     1578,