Allow to pass file list

kpet run and test subcommands accept file lists via --mboxes or --file.

Only --file is suitable for passing files explicitly. As environment and command line arguments are limited to something like 2MB in total size, long file lists cannot be passed directly on the command line via --file.

To work around that limit, provide a parameter --file-list that will read file lists similar to the output of kpet patch list-files. These file lists will be handled in the same way as mboxes.

Fixes #63 (closed)

Signed-off-by: Michael Hofmann mhofmann@redhat.com