Check g:dispatch_no_strategyname_spawn

The low level actions are spawn and make and the high level are start
and dispatch.  We should probably be consistent in naming the options
too.

Author: tpope

autoload/dispatch.vim

@@ -362,7 +362,8 @@ endfunction
 
 function! s:dispatch(request) abort
   for handler in g:dispatch_handlers
-    if get(g:, 'dispatch_no_' . handler . '_' . get(a:request, 'action'))
+    if get(g:, 'dispatch_no_' . handler . '_' . get(a:request, 'action')) ||
+          \ get(g:, 'dispatch_no_' . handler . '_' . (get(a:request, 'action') ==# 'start' ? 'spawn' : 'dispatch'))
       continue
     endif
     let response = call('dispatch#'.handler.'#handle', [a:request])