fixed a stupid bug on Shift_JIS EUDC decoder.
fixed a stupid bug on Shift_JIS EUDC decoder.

nox/rust-encoding,lifthrasiir/rust-encoding,servo/rust-encoding,lifthrasiir/rust-encoding,jedisct1/rust-encoding,tempbottle/rust-encoding,nox/rust-encoding,tempbottle/rust-encoding,jedisct1/rust-encoding,servo/rust-encoding,nox/rust-encoding,lifthrasiir/rust-encoding,tempbottle/rust-encoding