[llvm] Fix compress/decompress in LLVM Offloading API (PR #150064)

[James Henderson via llvm-commits]

https://github.com/jh7370 commented:

> Regarding the use of errs() directly in a library, I think it would be better to pass the stream to verbose print to into the library, rather than use errs() directly. The reasoning for this is related to what I talked about in an LLVM conference talk ages ago regarding errors in libraries: the client tool may need control as to where output goes. For example, it may want to send the verbose output to a log file, but keep the actual error messages on stderr, making redirection on the command-line inappropriate.

This out-of-line comment seems to have been ignored?

https://github.com/llvm/llvm-project/pull/150064