The "self-update" command is broken

[aik099]

Steps to reproduce:

1. download latest phar from https://scrutinizer-ci.com/ocular.phar
2. show it's version using php ocular.phar --version:

ocular version 8e0a8c7f085bc4857bd52132833679dcfd504fc1

1. run self-update command using php ocular.phar self-update:

#!/usr/bin/env php
Updating from 8e0a8c to #!/usr.

What not right:

1. the #!/usr/bin/env php is shown (something wrong with phar creation process probably)
2. update even from latest version possible (new version check is broken)
3. the #!/usr is shown instead of new version (new version check is broken)

Yes. Also, https://scrutinizer-ci.com/ocular.phar is two years outdated, keeping that one up-to-date would be a quick workaround for most users.

[Majkl578]

@schmittjoh This can be closed too now since the command was removed.