numeric.c: preserve encoding

* numeric.c (num_init_copy): preserve encoding of error message.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44613 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/numeric.c b/numeric.c
index 3ceb5ae2d2..ddc909ee28 100644
--- a/numeric.c
+++ b/numeric.c
@@ -332,7 +332,7 @@ num_sadded(VALUE x, VALUE name)
 static VALUE
 num_init_copy(VALUE x, VALUE y)
 {
-    rb_raise(rb_eTypeError, "can't copy %s", rb_obj_classname(x));
+    rb_raise(rb_eTypeError, "can't copy %"PRIsVALUE, rb_obj_class(x));
 
     UNREACHABLE;
 }