Robust System Log Collection

[tlcyr4]

Currently, the tool takes /var/log/syslog and dmesg, which captures the system logs we want on Ubuntu. However, RHEL-based distros tend to put logs into /var/log/messages instead of /var/log/syslog, and newer distros (including Ubuntu) are switching over to logging using journald. The tool should be intelligent enough to gather the logs we need in any of these cases.