Version string used at line 5, column 1.
  ValuesAndExpressions::ProhibitVersionStrings (Severity: 3)
    Whenever you `use' or `require' a module, you can specify a minimum
    version requirement. To ensure compatibility with older Perls, this
    version number should be expressed as a floating-point number. Do not
    use v-strings or three-part numbers. The Perl convention for expressing
    version numbers as floats is: version + (patch level / 1000).

        use Foo v1.2    qw(foo bar);  # not ok
        use Foo 1.2.03  qw(foo bar);  # not ok
        use Foo 1.00203 qw(foo bar);  # ok