Update runtime files
diff --git a/runtime/ftplugin/gprof.vim b/runtime/ftplugin/gprof.vim
index d4547ae..d8974bc 100644
--- a/runtime/ftplugin/gprof.vim
+++ b/runtime/ftplugin/gprof.vim
@@ -1,6 +1,7 @@
-" Language:    gprof
-" Maintainer:  Dominique Pelle <dominique.pelle@gmail.com>
-" Last Change: 2021 Apr 08
+" Language:     gprof
+" Maintainer:   Dominique Pelle <dominique.pelle@gmail.com>
+" Contributors: Doug Kearns <dougkearns@gmail.com>
+" Last Change:  2021 Sep 19
 
 " When cursor is on one line of the gprof call graph,
 " calling this function jumps to this function in the call graph.
@@ -9,7 +10,7 @@
 endif
 let b:did_ftplugin=1
 
-fun! <SID>GprofJumpToFunctionIndex()
+func! <SID>GprofJumpToFunctionIndex()
   let l:line = getline('.')
   if l:line =~ '[\d\+\]$'
     " We're in a line in the call graph.
@@ -22,11 +23,14 @@
     call search('^\[\d\+\].*\d\s\+' .  escape(@", '[]*.') . '\>', 'sW')
     norm! zz
   endif
-endfun
+endfunc
 
-" Pressing <C-]> on a line in the gprof flat profile or in
-" the call graph, jumps to the corresponding function inside
-" the flat profile.
-map <buffer> <silent> <C-]> :call <SID>GprofJumpToFunctionIndex()<CR>
+if !exists("no_plugin_maps") && !exists("no_gprof_maps")
+  " Pressing <C-]> on a line in the gprof flat profile or in
+  " the call graph, jumps to the corresponding function inside
+  " the flat profile.
+  map <buffer> <silent> <C-]> :call <SID>GprofJumpToFunctionIndex()<CR>
+  let b:undo_ftplugin = "silent! unmap <buffer> <C-]>"
+endif
 
 " vim:sw=2 fdm=indent