Multiple ports: improve regex compliance
These changes largely fall into just two categories:
1. Need textproc/gsed for GNU extensions
2. Extraneous escapes that can go away
For #1, there's a further subdivision into those that require autoconf magic and
those that can get away with BINARY_ALIAS=sed=${LOCALBASE}/bin/gsed.
-CURRENT will soon gain GNU extensions, but these will take longer to get to
all supported releases; we must switch them to gsed to ensure we're actually
properly building them as intended.
For #2, I've fixed these as I can and we should upstream these fixes.
PORTREVISION is bumped for all of the above, because we will almost certainly
build these differently when the replacements actually start working.
These were all detected by the below-referenced exp-run [1]. The patch included
forbids many ordinary characters from being escaped, since we'll later imbue
those with special meanings. This has had the nice side effect of picking up
various things that we didn't handle properly, e.g. \t and \r for tab and carriage
return.
PR: 229925 [1]
MFH: no (invasive risk)
Approved by: koobs (mentor) or bapt (mentor)
Approved by: portmgr (blanket: trivial build fixes)
Differential_Revision: <<this one>>I've called it a portmgr blanket since these are trivial build fixes after the patch in
PR 229925; I think this is within the spirit of the blanket.