Clean up syntax

Rakefile

@@ -50,6 +50,7 @@ namespace :litmus do
   desc "Run litmus test suite"
   task :run => :configure do
     sh "cd spec/dummy/ && rails server -d"
+    sleep 1
     puma_pid = `cat spec/dummy/tmp/pids/server.pid`
     exit_code = 0
 
@@ -60,7 +61,6 @@ namespace :litmus do
       puts "!!!!! Failure encountered during litmus test suite !!!!!"
     end
 
-    sleep 1
     sh "kill #{puma_pid}"
     exit exit_code
   end

lib/calligraphy/rails/web_dav_requests_controller.rb

@@ -127,7 +127,7 @@ module Calligraphy::Rails
       end
 
       if conditions[:etag]
-        validators = [@resource.etag, ""]
+        validators = [@resource.etag, '']
         conditions_met = false unless validate_etag validators, conditions[:etag]
       end
 
@@ -149,7 +149,7 @@ module Calligraphy::Rails
     end
 
     def get_client_nonce
-      auth_header = request.headers["HTTP_AUTHORIZATION"]
+      auth_header = request.headers['HTTP_AUTHORIZATION']
 
       auth = ::ActionController::HttpAuthentication::Digest.decode_credentials auth_header
       auth[:cnonce]