functests: Replace execute with either command or feed_command

Hope this will make people using feed_command less likely: this hides bugs.
Already found at least two:

1. msgpackparse() will show internal error: hash_add() in case of duplicate
   keys, though it will still work correctly. Currently silenced.
2. ttimeoutlen was spelled incorrectly, resulting in option not being set when
   expected. Test was still functioning somehow though. Currently fixed.

1 files changed, 4 insertions, 4 deletions

diff --git a/test/functional/options/shortmess_spec.lua b/test/functional/options/shortmess_spec.lua
index 22e8a39b79..99a574ec46 100644
--- a/test/functional/options/shortmess_spec.lua
+++ b/test/functional/options/shortmess_spec.lua
@@ -1,6 +1,6 @@
 local helpers = require('test.functional.helpers')(after_each)
 local Screen = require('test.functional.ui.screen')
-local clear, execute = helpers.clear, helpers.execute
+local clear, feed_command = helpers.clear, helpers.feed_command
 
 if helpers.pending_win32(pending) then return end
 
@@ -19,7 +19,7 @@ describe("'shortmess'", function()
 
   describe('"F" flag', function()
     it('hides messages about the files read', function()
-      execute('e test')
+      feed_command('e test')
       screen:expect([[
         ^                         |
         ~                        |
@@ -27,8 +27,8 @@ describe("'shortmess'", function()
         ~                        |
         "test" is a directory    |
       ]])
-      execute('set shortmess=F')
-      execute('e test')
+      feed_command('set shortmess=F')
+      feed_command('e test')
       screen:expect([[
         ^                         |
         ~                        |