Merge branch 'ls/travis-stricter-linux32-builds'

32-bit Linux build on Travis CI uses stricter compilation options. * ls/travis-stricter-linux32-builds: travis-ci: set DEVELOPER knob for Linux32 build

Junio C Hamano committed May 1, 2017 at 14:14 UTC 3c0a7b9d6b94ba86db2015445d0963a3fae932dc

No changes.