Updated vim plugins

sources_non_forked/vim-go/autoload/go/impl_test.vim

@@ -1,3 +1,7 @@
+" don't spam the user when Vim is started in Vi compatibility mode
+let s:cpo_save = &cpo
+set cpo&vim
+
 func! Test_impl() abort
   try
     let l:tmp = gotest#write_file('a/a.go', [
@@ -35,3 +39,9 @@ func! Test_impl_get() abort
     call delete(l:tmp, 'rf')
   endtry
 endfunc
+
+" restore Vi compatibility settings
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+" vim: sw=2 ts=2 et