2c8323df0d
An oversight in r320742 caused BREs to become sensitive to the branching operator prematurely, which caused breakage in some limited situations -- namely, those that tried to use branching in a BRE. Most of these scenarios had already been corrected beforehand to properly use gsed or grep for GNU extensions, so the damage is slightly mitigated. Reported by: antoine Reported by: antoine Approved by: emaste (mentor) Differential Revision: https://reviews.freebsd.org/D11522