Pedro F. Giffuni 5102499601 sed(1): partial fix for the case of the regex delimited with '['.
We don't generally support the weird case of regular expresions delimited
by an opening square bracket ('[') but POSIX says that inside
bracket expressions, escaping is not possible and both '[' and '\'
represent themselves.

PR:		230198 (exp-run)
Obtained from:	OpenBSD
2018-08-07 14:47:39 +00:00
..
2017-02-28 23:42:47 +00:00
2018-07-09 20:27:31 +00:00