Description of problem:
foreman-debug should have an option to collect all logs. It already has option -m to limit number of lines per file collected, but -m0 means files are emtpy ("tail -n0" is called).

Please fix -m 0 to collect whole file, not its zero-length tail.

Version-Release number of selected component (if applicable):
foreman-debug-1.7.2.49-1.el7sat.noarch

How reproducible:
100%

Steps to Reproduce:
1. foreman-debug m 0
2. unpack the generated archive
3. wc foreman-debug*/var/log/katello-installer/katello-installer.log

Actual results:
3. shows empty logfile collected

Expected results:
the collected log file should be the same like original

Additional info: