accept: Try to silence both a compiler warning and a coverity warning.
We really do not care if this write failed or not.
More silencing of compiler warnings
coverity: Fix a potential null pointer dereference
parse_aprs: add comments about intentional missing break in case
fix missing comment termination
coverity: worker: client classification: If it fails, don't reference null pointers.
coverity: If port is full, handle client disconnection right.