Reading 8bit characters from a socket fails

[Marcin 'Qrczak' Kowalczyk]

When reading from a socket using hGetLine, 8bit characters cause
fatal error, e.g.:

Fail: Prelude.Enum.toEnum{Char}: out of range: -77

-- 
 __("<    Marcin Kowalczyk * [EMAIL PROTECTED] http://kki.net.pl/qrczak/
 \__/          GCS/M d- s+:-- a22 C+++>+++$ UL++>++++$ P+++ L++>++++$ E-
  ^^                W++ N+++ o? K? w(---) O? M- V? PS-- PE++ Y? PGP->+ t
QRCZAK                  5? X- R tv-- b+>++ DI D- G+ e>++++ h! r--%>++ y-