issues with '%' character in path

[dlaflamme]

I am having issues when the source or target s3 path contains a '%' character. Specifically, the error I am seeing is:

"TypeError: not enough arguments for format string"

I no longer have the full stack trace, but this is happening when message() is called with a single string argument that contains '%' (that are legitimately part of the source or target file path) and with no additional arguments.

This issue was mentioned in issue #33 from 2016. The comment before that issue was closed correctly indicated that the problem was the use of call sites that "call message(str) instead of message('%s', str)" However there appears to still be calls to message(str) in the latest code. One example is:

s4cmd/s4cmd.py

Line 1463 in 7191685

message('%s => %s' % (source, target))

Would you prefer to confirm and fix this throughout the codebase or should I open a PR?