telnet.rb in ftpd-2.0.0

- old
+ new

@@ -1,6 +1,7 @@
 # -*- ruby encoding: us-ascii -*-
+# frozen_string_literal: true
 
 module Ftpd
 
   # Handle the limited processing of Telnet sequences required by the
   # FTP RFCs.
@@ -95,11 +96,11 @@
     ]
 
     # Parse the the command.  Sets @plain and @reply
 
     def parse_command(command)
-      @plain = ''
-      @reply = ''
+      @plain = ''.dup
+      @reply = ''.dup
       scanner = StringScanner.new(command)
       while !scanner.eos?
         SEQUENCES.each do |regexp, method|
           if scanner.scan(regexp)
             send method, scanner