Merge branch 'sh-lograge-strip-location-header' into 'master'

Strip any query string parameters from Location headers from lograge

See merge request gitlab-org/gitlab-ce!17895

config/initializers/lograge.rb

+# Monkey patch lograge until https://github.com/roidrage/lograge/pull/241 is released
+module Lograge
+  class RequestLogSubscriber < ActiveSupport::LogSubscriber
+    def strip_query_string(path)
+      index = path.index('?')
+      index ? path[0, index] : path
+    end
+
+    def extract_location
+      location = Thread.current[:lograge_location]
+      return {} unless location
+
+      Thread.current[:lograge_location] = nil
+      { location: strip_query_string(location) }
+    end
+  end
+end
+
 # Only use Lograge for Rails
 unless Sidekiq.server?
   filename = File.join(Rails.root, 'log', "#{Rails.env}_json.log")