https://gitlab.synchro.net/main/sbbs/-/commit/2fa8db2b6a1a5da43db71887
Modified Files:
	src/sbbs3/main.cpp
Log Message:
Perform "first level Ctrl-C input checking" even when in Telnet BINARY_TX

This condition caused aborting BBS operations via Ctrl-C to fail when
connecting from a traditional Telnet client using binary transmission
mode (e.g. telnet -8) or SyncTERM v1.2rc6.

The check of rio_abortable was probably enough to disable this function
during file transfers (e.g. we've had no issues with SSH file transfers
that might include byte 0x03 received from the client), but I added the
check for SS_FILEXFER system status check too, perhaps unnecessary.
--- SBBSecho 3.22-Linux