* data.c (Fsubr_name): Rewrite to avoid a strlen call.

src/ChangeLog

 2011-06-19  Paul Eggert  <eggert@cs.ucla.edu>
 
+	* data.c (Fsubr_name): Rewrite to avoid a strlen call.
+
 	* coding.c (make_subsidiaries): Don't assume string length fits in int.
 
 	* callproc.c (child_setup): Rewrite to avoid two strlen calls.

src/data.c

@@ -703,7 +703,7 @@ SUBR must be a built-in function.  */)
   const char *name;
   CHECK_SUBR (subr);
   name = XSUBR (subr)->symbol_name;
-  return make_string (name, strlen (name));
+  return build_string (name);
 }
 
 DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0,