Revert "Only lookup `config.log_level` for stdlib `::Logger`. Closes #11665."

This reverts commit e0a521cfcd13e4d1f0ae8ab96004289e1c020f71.

Conflicts:
	railties/CHANGELOG.md

We expect loggers to quack like stdlib logger. If log4r needs different
level= assignment, using a Logger-quacking wrapper is the way to do it.

Fixes #14114.

1 files changed, 1 insertions, 5 deletions

diff --git a/railties/lib/rails/application/bootstrap.rb b/railties/lib/rails/application/bootstrap.rb
index 33bcab1e57..a26d41c0cf 100644
--- a/railties/lib/rails/application/bootstrap.rb
+++ b/railties/lib/rails/application/bootstrap.rb
@@ -53,11 +53,7 @@ INFO
           logger
         end
 
-        if ::Logger === Rails.logger
-          Rails.logger.level = ActiveSupport::Logger.const_get(config.log_level.to_s.upcase)
-        else
-          Rails.logger.level = config.log_level
-        end
+        Rails.logger.level = ActiveSupport::Logger.const_get(config.log_level.to_s.upcase)
       end
 
       # Initialize cache early in the stack so railties can make use of it.