lib/webrick/server.rb in webrick-1.7.0 vs lib/webrick/server.rb in webrick-1.8.0

@@ -1,6 +1,6 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 #
 # server.rb -- GenericServer Class
 #
 # Author: IPR -- Internet Programming with Ruby -- writers
 # Copyright (c) 2000, 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou
@@ -100,10 +100,10 @@
       @logger.info("ruby #{rubyv}")
 
       @listeners = []
       @shutdown_pipe = nil
       unless @config[:DoNotListen]
-        raise ArgumentError, "Port must an integer" unless @config[:Port].to_s == @config[:Port].to_i.to_s
+        raise ArgumentError, "Port must be an integer" unless @config[:Port].to_s == @config[:Port].to_i.to_s
 
         @config[:Port] = @config[:Port].to_i
         if @config[:Listen]
           warn(":Listen option is deprecated; use GenericServer#listen", uplevel: 1)
         end