Index error if file is empty

[mlarjim]

Hi! I am a big fan of parsnp. I was using v1.7.4 so I decided to update parsnp to v2.0.5. However, I get this error:

File "miniconda3/envs/parsnp2/bin/parsnp", line 969, in parse_input_files
    if hdr[0] != ">":
       ~~~^^^
IndexError: string index out of range

It is due to an empty file in my genomes directory, but older versions overcome this problem. Thank you in advance