Subject: grep: warning: GREP_OPTIONS is deprecated; please use an alias or script
From: 積丹尼 Dan Jacobson <[email-masked]>
To: [email-masked]
Date: Tue, 02 Dec 2014 07:01:43 +0800
List-Id: <debbugs-submit.debbugs.gnu.org>

(rgrep ...) gives
grep: warning: GREP_OPTIONS is deprecated; please use an alias or script
GNU Emacs 24.4.1