patch 9.1.0735: filetype: salt files are not recognized

Problem:  filetype: salt files are not recognized
Solution: Detect '*.sls' files as filetype salt,
          include a syntax script (Gregory Anders)

closes: #15689

Signed-off-by: Gregory Anders <greg@gpanders.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 938eec7..d1588f3 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -635,6 +635,7 @@
     rtf: ['file.rtf'],
     ruby: ['.irbrc', 'irbrc', '.irb_history', 'irb_history', 'file.rb', 'file.rbw', 'file.gemspec', 'file.ru', 'Gemfile', 'file.builder', 'file.rxml', 'file.rjs', 'file.rant', 'file.rake', 'rakefile', 'Rakefile', 'rantfile', 'Rantfile', 'rakefile-file', 'Rakefile-file', 'Puppetfile', 'Vagrantfile'],
     rust: ['file.rs'],
+    salt: ['file.sls'],
     samba: ['smb.conf'],
     sas: ['file.sas'],
     sass: ['file.sass'],
diff --git a/src/version.c b/src/version.c
index 7558968..dbcb6eb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    735,
+/**/
     734,
 /**/
     733,