Missing arg for CustomQuery and mergeCSV (without --split)

[cApii75]

Hey,

I used pcapinator to get data from multiple small pcap files. So I didn't use the split arg. There's a small issue in that, because at line 359, you didn't put any arg in mergeCSV, so it crashs. I added "split_output" to get the default parameters (current directory).
tsvfile = mergeCSV(split_output)