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-rw-r--r--activesupport/lib/active_support/core_ext/logger.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/logger.rb b/activesupport/lib/active_support/core_ext/logger.rb
index 22749229a3..e4df8fe338 100644
--- a/activesupport/lib/active_support/core_ext/logger.rb
+++ b/activesupport/lib/active_support/core_ext/logger.rb
@@ -137,10 +137,10 @@ class Logger
attr_writer :formatter
public :formatter=
- alias old_format_datetime format_datetime
+ alias old_format_datetime format_datetime if method_defined?(:format_datetime)
def format_datetime(datetime) datetime end
- alias old_msg2str msg2str
+ alias old_msg2str msg2str if method_defined?(:msg2str)
def msg2str(msg) msg end
end
end