class Logger

Reopen a log device.

=== Description

it is +nil+, do nothing for IO. Default is +nil+.
+STDOUT+, +STDERR+, or an open file). reopen the same filename if
The log device. This is a filename (String) or IO object (typically
+logdev+::

=== Args

Logger#reopen(logdev)
Logger#reopen
:call-seq:

def reopen(logdev = nil)
  @logdev&.reopen(logdev)
  self
end