please classify AIX to be an operating system with a bad tar

[XSven]

The AIX related issue #597 was solve by changing the order of the PATH. From my perspective the first step should have been to classify AIX as an operating system that has a bad tar. Could this

use constant BAD_TAR => ($^O eq 'solaris' || $^O eq 'hpux');

be changed to

use constant BAD_TAR => ($^O eq 'solaris' || $^O eq 'hpux' || $^O eq 'aix');

in the next release. I have tested this on an AIX 7.2 platform and it works if both gzip and bzip2 are found.

[XSven]

How can I help, to raise the priority of this and the issue #630 too?