Index: vim-8.2.2411/runtime/syntax/sh.vim
===================================================================
--- vim-8.2.2411.orig/runtime/syntax/sh.vim
+++ vim-8.2.2411/runtime/syntax/sh.vim
@@ -74,6 +74,13 @@ if exists("b:is_dash")
  let b:is_posix= 1
 endif
 
+" Neither is_kornshell nor is_bash was explicitly set, and
+" /bin/sh is a bash on SUSE LINUX.
+if exists("b:is_sh")
+  let b:is_bash= 1
+  unlet b:is_sh
+endif
+
 " set up default g:sh_fold_enabled {{{1
 " ================================
 if !exists("g:sh_fold_enabled")