Remove redundant RTEST

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62286 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

error.c

@@ -1463,7 +1463,7 @@ nometh_err_initialize_options(int argc, VALUE *argv, VALUE self, VALUE options)
     VALUE args = (argc > 2) ? argv[--argc] : Qnil;
     name_err_initialize_options(argc, argv, self, options);
     rb_ivar_set(self, id_args, args);
-    rb_ivar_set(self, id_private_call_p, RTEST(priv) ? Qtrue : Qfalse);
+    rb_ivar_set(self, id_private_call_p, priv);
     return self;
 }