Permit using separator characters other than ',' when generating tabular output data

[mbeutel]

I generally prefer tab-separated columns over comma-separated columns because they are easier to read with a plain text editor. It would be helpful if mcollector had an additional --separator argument to determine which separator to use so I could say

$ mcollector --separator '\t' ./*

to get tab-separated output. (Note that mcollector would need to handle escape sequences like \t.)

A prototype implementation is buried in these two commits in my fork:
mbeutel@96dda6a
mbeutel@232ab44

I can make them a proper pull request if desired.