merge revision(s) r44916: [Backport #10043]

	error.c: Crash Report log

	* error.c (REPORTBUG_MSG): mention about Crash Report log file on
  MacOS X.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@47416 b2dd03c8-39d4-4d8f-98ff-823fe69b080e