io: ensure BufferedReader.read_line() returns io.Eof

[pierrec]

BufferedReader.read_line() used to return error('none') upon reaching the end of the stream instead return io.Eof.

[spytheman]

Excellent work.

[spytheman]

I do not get it 🤷🏻‍♂️ . I had already formatted vlib/io/custom_string_reading_test.v and pushed it here, and then you force pushed again, overwriting the formatted file 🤔 again.

[spytheman]

Please do run v fmt -w vlib/io/custom_string_reading_test.v and push the change.

[pierrec]

I do not get it 🤷🏻‍♂️ . I had already formatted vlib/io/custom_string_reading_test.v and pushed it here, and then you force pushed again, overwriting the formatted file 🤔 again.

Sorry, I pushed while being on the wrong branch.