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, 3 insertions, 3 deletions

diff --git a/test/functional/ex_cmds/encoding_spec.lua b/test/functional/ex_cmds/encoding_spec.lua
index 87ed7a2d0a..0769259be4 100644
--- a/test/functional/ex_cmds/encoding_spec.lua
+++ b/test/functional/ex_cmds/encoding_spec.lua
@@ -1,5 +1,5 @@
 local helpers = require('test.functional.helpers')(after_each)
-local clear, execute, feed = helpers.clear, helpers.execute, helpers.feed
+local clear, feed_command, feed = helpers.clear, helpers.feed_command, helpers.feed
 local eq, neq, eval = helpers.eq, helpers.neq, helpers.eval
 
 describe('&encoding', function()
@@ -12,7 +12,7 @@ describe('&encoding', function()
   end)
 
   it('cannot be changed after setup', function()
-    execute('set encoding=latin1')
+    feed_command('set encoding=latin1')
     -- error message expected
     feed('<cr>')
     neq(nil, string.find(eval('v:errmsg'), '^E474:'))
@@ -31,7 +31,7 @@ describe('&encoding', function()
   end)
 
   it('can be set to utf-8 without error', function()
-    execute('set encoding=utf-8')
+    feed_command('set encoding=utf-8')
     eq("", eval('v:errmsg'))
 
     clear('--cmd', 'set enc=utf-8')