VBoxManage --version command wrong output checking

[chombium]

I've tested the Bosh CPI on newer versions of VirtualBox and I've noticed that we have problems with the parsing on v7.0 and v7.1

VBoxManage --version
7.1.0r164728

VBoxManage --version
7.0.20r163906

Everything works as expected with:

VBoxManage --version
6.1.50r161033

There is problem with the version check on this line in the code.

I'll work together with @ZPascal on a fix.

[arcenik]

This is the cause of the problem

$ export LOGNAME=bla  
$ VBoxManage --version
WARNING: Environment variable LOGNAME or USER does not correspond to effective user id.
7.1.4r165100

The WARNING line add an additional item before the version.