23.11.0

Don't complain about ignored files in patches/.

Don't check for deprecated variables outside pkgsrc.

Warn about unusual single-character variables.

Fix parsing of the ':!cmd!', ':S' and ':C' modifiers.

Don't simplify unsatisfiable 'empty(VAR:M)' condition.

Fix contradictory warnings about GMAKE_REQD, which is not a list, even though it follows the naming convention for list variables.

Treat hyphens in package versions as errors, as the full package name "pkgbase-3g-7.4" is ambiguous, as the version could either start with "3g" or with "7", and depending on the context, either of these is used.