Fix DRbServer#any_to_s

My previous fix in d0ed935d5bf8c3fce9800742a36e44fb7f63dda4 was
not correct, as pointed out by cremno on GitHub.

This simplifies things by just using Kernel#to_s.  Also switch to
bind_call(obj) instead of bind(obj).call for better performance.

1 files changed, 2 insertions, 8 deletions

diff --git a/lib/drb/drb.rb b/lib/drb/drb.rb
index 9b4d675096..5c7f66ac16 100644
--- a/lib/drb/drb.rb
+++ b/lib/drb/drb.rb
@@ -1606,15 +1606,9 @@ module DRb
     # Coerce an object to a string, providing our own representation if
     # to_s is not defined for the object.
     def any_to_s(obj)
-      obj.to_s + ":#{obj.class}"
+      "#{obj}:#{obj.class}"
     rescue
-      case obj
-      when Object
-        klass = obj.class
-      else
-        klass = Kernel.instance_method(:class).bind(obj).call
-      end
-      sprintf("#<%s:0x%dx>", klass, obj.__id__)
+      Kernel.instance_method(:to_s).bind_call(obj)
     end
 
     # Check that a method is callable via dRuby.