[cross-platform] [verbosity] Use argv[0] instead of "php.exe" (C/Unix behaviour)

[chl0e3e]

Code

Usage should derive the command's executable name from the operating system

https://stackoverflow.com/questions/7941536/windows-vs-linux-gcc-argv0-value

[gizmore]

Thank you. This issue got resolved meanwhile on a coding spree someday.