schneems/get_process_mem — pull request #6 by bdmac (2014-04-04 06:04:28+00:00)
Title: Do not fall back on `ps` for linux

When linux? is true mem_type gets set to pss by the initializer. If
something breaks while trying to determine memory usage in ```bytes```
using linux_memory, falling back to ps_memory with mem_type=pss does not
work/is invalid. It makes more sense to simply return 0 instead.

This fixes schneems/get_process_mem#5