* lib/pp.rb: Use frozen_string_literal: true.

* lib/prettyprint.rb: Ditto.

* lib/resolv.rb: Ditto.

* lib/tmpdir.rb: Ditto.

* test/test_pp.rb: Ditto.

* test/test_prettyprint.rb: Ditto.

* tool/transcode-tblgen.rb: Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52042 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/pp.rb b/lib/pp.rb
index 3c73463c9c..ef787bb764 100644
--- a/lib/pp.rb
+++ b/lib/pp.rb
@@ -1,3 +1,5 @@
+# -*- frozen_string_literal: true -*-
+
 require 'prettyprint'
 
 module Kernel
@@ -9,7 +11,7 @@ module Kernel
   #
   # See the PP module for more information.
   def pretty_inspect
-    PP.pp(self, '')
+    PP.pp(self, ''.dup)
   end
 
   private
@@ -347,7 +349,7 @@ class PP < PrettyPrint
       if /\(PP::ObjectMixin\)#/ =~ Object.instance_method(:method).bind(self).call(:pretty_print).inspect
         raise "pretty_print is not overridden for #{self.class}"
       end
-      PP.singleline_pp(self, '')
+      PP.singleline_pp(self, ''.dup)
     end
   end
 end