fix default parm, noticed by aja@ on clean-old-distfiles

move to use v5.36;
tested by me over the last few weeks, and tb@
also fixed a "manual install" bug properly reported by tb@

aside that there should be *no functional change*.
If you see any message

move to use v5.36;
tested by me over the last few weeks, and tb@
also fixed a "manual install" bug properly reported by tb@

aside that there should be *no functional change*.
If you see any message like "hey, the number of params is wrong"
it is a fringe case I didn't run into and should be easy to fix.

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"fix" for 5.36: pass the possible option value as an extra param
instead of defined/undefined, so that the code sub is called with
the right number of parameters.

remove indirect calls

stop using old-style prototypes except where strictly necessary
(for try/catch)

signatures will be much more powerful once I move to 5.36

prevent dpb trace handler from getting in the way of normal usage error reports.

handle failures from ports tree with more care.
this does avoid infinite loops in case of wrong plists.
necessary since print-plist-with-depends CAN fail...

initial scaffolding for @rcscript: for now, acts like normal files,
but allow absolute pathnames (treat that as an implicit @cwd).

allow say and errsay to work without parameters, as it's ways common.
create verbose_system up in state, because it makes sense without verbose.

whitespace cleanup

whitespace fixes

bad espie: use strict/warnings consistently, and fix two nits and two
actual errors !

let GetOpt count how many times it sees an option, removes special case
for -v, and allow other fun possibilities.

some minor systematic changes.
- mark all regexps I can with /o if they can be compiled once.
- turn $o->method() into $o->method
- remove unneeded prototypes
- reduce split /re/ into split "string"

some minor systematic changes.
- mark all regexps I can with /o if they can be compiled once.
- turn $o->method() into $o->method
- remove unneeded prototypes
- reduce split /re/ into split "string" where possible.

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add missing licence info.

use strict/warning where applicable, and fix relevant warnings.

make Getopt show full option name.
noticed by deraadt@

new getopt module, that allows for option-specific processing, so that
for instance, pkg_create -Dvar=value -Dvar2=value2 will work.