lint pass 2 (#8878)

* Code quality pass

* Typofix

* Update applications_controller_spec.rb

* Update applications_controller_spec.rb

config/initializers/http_client_proxy.rb

@@ -6,7 +6,7 @@ Rails.application.configure do
     raise "No proxy host" unless proxy.host
 
     host = proxy.host
-    host = host[1...-1] if host[0] == '[' #for IPv6 address
+    host = host[1...-1] if host[0] == '[' # for IPv6 address
     config.x.http_client_proxy[:proxy] = { proxy_address: host, proxy_port: proxy.port, proxy_username: proxy.user, proxy_password: proxy.password }.compact
   end
 

config/initializers/omniauth.rb

@@ -3,7 +3,7 @@ Rails.application.config.middleware.use OmniAuth::Builder do
 end
 
 Devise.setup do |config|
-  # Devise omniauth strategies
+  # Devise omniauth strategies
   options = {}
   options[:redirect_at_sign_in] = ENV['OAUTH_REDIRECT_AT_SIGN_IN'] == 'true'
 

config/initializers/open_uri_redirection.rb

@@ -1,7 +1,7 @@
 require 'open-uri'
 
 module OpenURI
-  def OpenURI.redirectable?(uri1, uri2) # :nodoc:
+  def self.redirectable?(uri1, uri2) # :nodoc:
     uri1.scheme.downcase == uri2.scheme.downcase ||
       (/\A(?:http|https|ftp)\z/i =~ uri1.scheme && /\A(?:http|https|ftp)\z/i =~ uri2.scheme)
   end

config/initializers/rack_attack.rb

@@ -42,7 +42,7 @@ class Rack::Attack
   # (blocklist & throttles are skipped)
   Rack::Attack.safelist('allow from localhost') do |req|
     # Requests are allowed if the return value is truthy
-    '127.0.0.1' == req.ip || '::1' == req.ip
+    req.ip == '127.0.0.1' || req.ip == '::1'
   end
 
   throttle('throttle_authenticated_api', limit: 300, period: 5.minutes) do |req|

config/initializers/sidekiq.rb

@@ -19,4 +19,4 @@ Sidekiq.configure_client do |config|
   config.redis = redis_params
 end
 
-Sidekiq::Logging.logger.level = ::Logger::const_get(ENV.fetch('RAILS_LOG_LEVEL', 'info').upcase.to_s)
+Sidekiq::Logging.logger.level = ::Logger.const_get(ENV.fetch('RAILS_LOG_LEVEL', 'info').upcase.to_s)