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Apparently a line longer than 255 chars was spotted in the wild:
http://serverfault.com/questions/577939/linux-ps-htop-show-processes-running-for-hundreds-or-thousands-of-days-though-h#comment676098_577939

Read OOM data only if column is enabled.
Make sort ordering more consistent. Closes #182.

This is a work-in-progress, code is currently broken.
(Some actions, and notably, the header, are missing.)