Logging now defaults to stdout

(K-T Lim) #1

With the adoption and implementation of RFC-402 in DM-12359, pipe_base master now has all CmdLineTasks logging to stdout instead of stderr. Note that this logging is still unbuffered; output is flushed after each log message. This is intended to simplify separation of normal logs from exceptions/tracebacks and other errors (but not logs at the warning or error severity levels).