vagrant uses 'ssh-config' command, not 'ssh_config'
Diff
1diff --git a/plugins/vagrant/_vagrant b/plugins/vagrant/_vagrant
2index 483b29c53d57186b01ec55d780f8debce0cb5995..1eed7f988f5993054c6fdd79e213c5234bdec5c4 100644
3--- a/plugins/vagrant/_vagrant
4+++ b/plugins/vagrant/_vagrant
5@@ -15,7 +15,7 @@ _1st_arguments=(
6 'reload:Reload the vagrant environment'
7 'resume:Resumes a suspend vagrant environment'
8 'ssh:SSH into the currently running environment'
9- 'ssh_config:outputs .ssh/config valid syntax for connecting to this environment via ssh.'
10+ 'ssh-config:outputs .ssh/config valid syntax for connecting to this environment via ssh.'
11 'status:Shows the status of the current Vagrant environment.'
12 'suspend:Suspends the currently running vagrant environment'
13 'up:Creates the vagrant environment'