Merge branch 'km/log-showsignature-doc' into maint

Doc update. * km/log-showsignature-doc: config.txt: add an entry for log.showSignature

Junio C Hamano committed Jun 4, 2017 at 10:21 UTC b522c33b45ddb00970c76c188354c5a4117a2c5a

No changes.