if (/--*sl*e*e*p*=(\d+)/i) { $sleeptime = $1; next }
    if (/--*ex*i*t*/i)         { $endfirst = 1;  next }
    if (/--*ve*r*b*o*s*e*/i)     { $verbose = 1;  next }
    if (/--*he*l*p*/i) {
[download]

This is some really cool typo checking!

--sleeeeeeeeeee
--sleeeee
--slp
--sp

Useful for intoxicated Unix users everywhere!