1. d79de1d Add GPL-2.0+ SPDX-License-Identifier to source files by Wolfgang Denk · Mon Jul 08 09:37:19 2013 +0200
  2. fb586da env_callback: Mark find_env_callback as static by Tom Rini · Tue Mar 12 06:16:50 2013 +0000
  3. 60fd3ad env: Add support for callbacks to environment vars by Joe Hershberger · Tue Dec 11 22:16:24 2012 -0600