patch 9.1.0596: filetype: devscripts config files are not recognized

Problem:  filetype: Debian devscripts config files are not recognized
Solution: detect devscripts.conf and .devscripts files as sh filetype
          (sourced by /bin/sh)

closes: #15227

Signed-off-by: Wu, Zhenyu <wuzhenyu@ustc.edu>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 5cff0a3..e989d6e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    596,
+/**/
     595,
 /**/
     594,