K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2020-07-24T17:10:51.106729Z
K 7
svn:log
V 507
Multiple ports: improve regex compliance (part 2)

This is again a part of the project to stop extraneous escaping of
ordinary characters and redefine some ordinary escapes as special
behavior.

Most of these ports are pushed over to use textproc/gsed because they
want to use GNU extensions.  Others are fixed to either escape appropriately
(e.g. $$ rather than \$ in Makefiles!) or just remove redundant escapes
(e.g. backtick in single quotes doesn't need escaped).

PR:		229925
MFH:		no (invasive risk)

END