patch 8.2.4095: sed script not recognized by the first line

Problem:    Sed script not recognized by the first line.
Solution:   Recognize a sed script starting with "#n". (Doug Kearns)
diff --git a/runtime/scripts.vim b/runtime/scripts.vim
index e41405a..dd47f65 100644
--- a/runtime/scripts.vim
+++ b/runtime/scripts.vim
@@ -406,6 +406,12 @@
   elseif s:line1 =~# '^#.*by RouterOS.*$'
     set ft=routeros
 
+  " Sed scripts
+  " #ncomment is allowed but most likely a false positive so require a space
+  " before any trailing comment text
+  elseif s:line1 =~# '^#n\%($\|\s\)'
+    set ft=sed
+
   " CVS diff
   else
     let s:lnum = 1
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 5a5ba5f..755eafc 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -654,7 +654,7 @@
       \                ['#!/path/nodejs'],
       \                ['#!/path/rhino']],
       \ 'bc': [['#!/path/bc']],
-      \ 'sed': [['#!/path/sed']],
+      \ 'sed': [['#!/path/sed'], ['#n'], ['#n comment']],
       \ 'ocaml': [['#!/path/ocaml']],
       \ 'awk': [['#!/path/awk'],
       \         ['#!/path/gawk']],
diff --git a/src/version.c b/src/version.c
index e62c69d..733021b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4095,
+/**/
     4094,
 /**/
     4093,