Log Message:
pkgtools/pkglint: update to 19.3.13

Changes since 19.3.12:

The command line option -Wspace has been removed. Warnings and notes
about whitespace are now generated by default and cannot be switched
off. This is to ensure a consistent visual appearance of the package
Makefiles.

Shell programs that are indented unnecessarily deep generate a note by
default now. Before, the option -Wall was necessary to get these notes.

The check for unintended comments in multi-line shell programs is now
enabled again. It had been disabled some time ago as byproduct of a bug
fix in the shell parser.

The check for unique buildlink3 package identifiers now also works if
pkglint is run from a package directory instead of the pkgsrc root
directory.