echo Name "ClearCase::Argv" used only once: possible typo at /usr/lib/perl5/site_perl/5.10/Argv.pm line 308. |splain

Name "ClearCase::Argv" used only once: possible typo at
        /usr/lib/perl5/site_perl/5.10/Argv.pm line 308.  (#1)
    (W once) Typographical errors often show up as unique variable names.
    If you had a good reason for having a unique name, then just mention it
    again somehow to suppress the message.  The our declaration is
    provided for this purpose.

    NOTE: This warning detects symbols that have been used only once so $c, @c,
    %c, *c, &c, sub c{}, c(), and c (the filehandle or format) are considered
    the same; if a program uses $c only once but also uses any of the others it
    will not trigger this warning.