andrewshawcare/thoughtworks-email-signature-generator — pull request #10 by sgeb (2014-06-14 03:12:57+00:00)
Title: Add signature separator

Usenet and email conventions recommend that the signature "be delimited
from the body of the message by a single line consisting of exactly two
hyphens, followed by a space, followed by the end of line."

It helps email clients to hide or delete the signature when replying.