patch 9.1.1517: filetype: autopkgtest files are not recognized

Problem:  filetype: autopkgtest files are not recognized
Solution: detect */debian/tests/control files as autopkgtest filetype
          (James McCoy)

Autopkgtest is a Debian tool for testing installed versions of packages
when other, related packages are updated.

Reference:
- https://www.debian.org/doc/debian-policy/autopkgtest.txt

related: #17679

Signed-off-by: James McCoy <jamessan@jamessan.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 6b9d934..6bd3f67 100644
--- a/src/version.c
+++ b/src/version.c
@@ -720,6 +720,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1517,
+/**/
     1516,
 /**/
     1515,