- upgrade latest snapshot, changes from -11 to -15:
12. src/nntplib.h: Removed duplicate declarations of nntp_server_cmd
and nntp_server_vcmd. (Li Hong).
13. src/decode.c: If an output file already exists, create a new one
by appending an integer to the name.
14. src/slrn.c: work around a SLang_getkey bug that arises when the
underlying read system call is interrupted, and the interrupt hook
creates a different read descriptor.
15. src/misc.c: All error messages (including slang tracebacks) are
logged to the --debug output file.
6d42bfd427