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-rw-r--r--lib/logger.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/logger.rb b/lib/logger.rb
index 854687c720..b2086dc8d3 100644
--- a/lib/logger.rb
+++ b/lib/logger.rb
@@ -349,8 +349,8 @@ class Logger
# === Args
#
# +logdev+::
- # The log device. This is a filename (String) or IO object (typically
- # +STDOUT+, +STDERR+, or an open file).
+ # The log device. This is a filename (String), IO object (typically
+ # +STDOUT+, +STDERR+, or an open file) or nil (it writes nothing).
# +shift_age+::
# Number of old log files to keep, *or* frequency of rotation (+daily+,
# +weekly+ or +monthly+). Default value is 0, which disables log file