rapid7/metasploit-framework — pull request #4481 by bcoles (2014-12-29 21:11:02+00:00)
Title: Update Linux Gather User History module

Minor improvements and tidy up of Linux Gather User History module.

* Collect history for additional shells (ash bash csh ksh sh tcsh zsh)
* Collect PostgreSQL history
* Use `blank?` instead of `nil?` to avoid writing empty text files to loot directory.