hostmanager starts when "-h" or "--help" flags are issued

[kasiagauza]

Behavior:

Issuing vagarant hostmanager with "-h" or "--help" updates host files on vm(s). It shouldn't. Help message gets printed, anyway.

Step to reproduce:

vagrant hostmanager -h
   Usage: vagrant hostmanager [vm-name]
    --provider provider          Update machines with the specific provider.
    -h, --help                       Print this help
[vagrant-hostmanager:guest] Updating hosts file on the virtual machine ubuntu-c...
[vagrant-hostmanager:guest] Updating hosts file on the virtual machine ub-mg-1...
[vagrant-hostmanager:guest] Updating hosts file on the virtual machine ub-mg-2...

Environment:

• Vagrant 2.2.5
• Vagrant Hostmanager 1.8.9
• Windows 10.0.18362
• PowerShell Core 6.2.1

[meersjo]

Bug confirmed to still exist in 1.8.10.

Good thing this plugin doesn't do anything too destructive, because running when -h has been passed is more than a little unexpected.