vim-patch:8.2.4701: Kuka Robot Language files not recognized (#18012)

Problem:    Kuka Robot Language files not recognized.
Solution:   Recognize *.src and *.dat files. (Patrick Meiser-Knosowski,
            closes vim/vim#10096)
3ad2090316

runtime/autoload/dist/ft.vim

@@ -899,6 +899,23 @@ func dist#ft#FTtf()
   setf tf
 endfunc
 
+" Determine if a *.src file is Kuka Robot Language
+func dist#ft#FTsrc()
+  if exists("g:filetype_src")
+    exe "setf " .. g:filetype_src
+  elseif getline(nextnonblank(1)) =~? '^\s*\%(&\w\+\|\%(global\s\+\)\?def\>\)'
+    setf krl
+  endif
+endfunc
+
+" Determine if a *.dat file is Kuka Robot Language
+func dist#ft#FTdat()
+  if exists("g:filetype_dat")
+    exe "setf " .. g:filetype_dat
+  elseif getline(nextnonblank(1)) =~? '^\s*\%(&\w\+\|defdat\>\)'
+    setf krl
+  endif
+endfunc
 
 " Restore 'cpoptions'
 let &cpo = s:cpo_save