t / t5100 / quoted-string.expecton commit diff.c: emit_diff_symbol learns DIFF_SYMBOL_FILEPAIR_{PLUS, MINUS} (3ee8b7b)
   1Author: Author "The Author" Name
   2Email: somebody@example.com
   3Subject: testing quoted-pair
   4Date: Sun, 25 May 2008 00:38:18 -0700
   5