Makefile.PL: Parens for a less sucky error message

This:

    $ perl Makefile.PL
    include /home/avar/g/Hijk/inc/Module/Install.pm
    Bareword "cpanfile" not allowed while "strict subs" in use at Makefile.PL line 5.
    Execution of Makefile.PL aborted due to compilation errors.

Sucks slightly more than:

    $ perl Makefile.PL
    include /home/avar/g/Hijk/inc/Module/Install.pm
    include inc/Module/Install/Metadata.pm
    include inc/Module/Install/Base.pm
    include inc/Module/Install/Makefile.pm
    Cannot determine perl version info from lib/Hijk.pm
    Unknown function is found at Makefile.PL line 5.
    Execution of Makefile.PL aborted due to runtime errors.

    If you're a contributor to a project, you may need to install
    some Module::Install extensions from CPAN (or other repository).
    If you're a user of a module, please contact the author.