Remove newlines in detailed log messages

[mtnpke]

The (officially deprecated, but still working) JLINKARM_EnableLogCom adds newlines add the end of every message that clobber the log output. Use rstrip() to remove the newlines.

[hkpeprah]

I think this makes sense. Thanks for the contribution!

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[mtnpke]

As per e-mail from your company on 2025-05-29, a CLA is not required in the case of this PR.

[hkpeprah]

Sorry, I'm not aware of an e-mail. Could you share the details?

[mtnpke]

forwarded

[hkpeprah]

Confirmed. Thank you!