The following three properties,
make it possible to control whether
FATAL, ERROR, and WARN
levels of log output in the console is logged to
stdout or stderr.
Prior to Wrapper version 3.5.3,
all levels were output to stdout.
Starting with Wrapper version 3.5.3,
FATAL and ERROR
log levels are sent to stderr by default,
while all other log levels are sent to stdout.
Most of users will not find it necessary to touch these properties, but they can be useful
if it becomes necessary to redirect all log levels back to stdout.
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