* Fix missing potential null termination in xmodem filename handling
The packet size max is 128 bytes, and the filename is 128 bytes, so
potentially there is no NUL at the end. use strlcpy() as that takes
care of null termination even if buffer size is exceeded.
* Protect against theoretical buffer overflows in BLE logging
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Co-authored-by: Ben Meadors <benmmeadors@gmail.com>