Merge argument '--renameDuplicates' not working

[JanJakes]

Summary:

It seems that argument --renameDuplicates of gtfs-merge-cli is not working. I can't even find it in the project sources. It is, however, mentioned in the docs.

Steps to reproduce:

Run gtfs-merge-cli with --renameDuplicates on any file (or all of them).

Expected behavior:

Merge should work and rename all identifiers.

Observed behavior:

I get java.io.FileNotFoundException: --renameDuplicates (No such file or directory).

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I am trying to merge two exclusive GTFS files into one (two cities) but the gtfs-merge-cli seems to mix their stops, etc. I wanted to prevent that using --renameDuplicates on all GTFS files, but the option doesn't seem to exist.