This isn't a bug, it's a feature.
What's happening is that the numbers are getting sorted as strings, and since 8 comes after 30 (chr(8) > chr(3)) (ord(8) > ord(3)), you get those unwanted effects.
Fortunately, (hurrah!) you can pass additional sorting methods to sort. For instance, reverse sort @arr can be rewritten as sort {$b cmp $a} @arr. You can use the same feature to sort numerically using the UFO operator: sort {$a <=> $b} @arr
There's other ways sort simplifies your life; RTFM for more info.
Update: Successfully picked; thanks, ChemBoy... although what I wrote is technically true as well... :o)
LAI
:eof
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