drudru/unixrack — pull request #2 by sodabrew (2014-01-27 05:06:50+00:00)
Title: Trap signals by symbol everywhere

Just for consistency. Reading the code indicates no difference in behavior:
http://rxr.whitequark.org/mri/source/signal.c?v=1.8.7-p374#749
http://rxr.whitequark.org/mri/source/signal.c?v=1.9.3-p484#824