Update lib/net/http/generic_request.rb

Co-authored-by: Sorah Fukumori <sora134@gmail.com>

Author: taketo1113

lib/net/http/generic_request.rb

@@ -23,7 +23,7 @@ def initialize(m, reqbody, resbody, uri_or_path, initheader = nil) # :nodoc:
       raise ArgumentError, "no host component for URI" unless (hostname && hostname.length > 0)
       @uri = uri_or_path.dup
       @host = @uri.host.dup
-      @port = @uri.port if @uri.port != @uri.default_port
+      @port = @uri.port == @uri.default_port ? nil :  @uri.port
       @path = uri_or_path.request_uri
       raise ArgumentError, "no HTTP request path given" unless @path
     else