>
ATGC
>trailingblank1
AAATTTGGGCCC
TTTGGGCCCAAA
GGGCCCAAA

>trailingblank2 with last dna line the same length
AAATTTGGGCCCAAATTTGGGCCC
TTTGGGCCCAAATTTGGGCCCAAA
GGGCCCAAATTTGGGCCCAAATTT

>trailingblank3 with cr-lf style line endings
ACGT
A

>  foo
TGCATG
CA
> bar description
TTTTAAAA