c:\dev\ruby\downloads\ruby>git.exe diff   | cat
diff --git a/random.c b/random.c
index 1a93779..99a5c38 100644
--- a/random.c
+++ b/random.c
@@ -762,7 +762,8 @@ random_load(VALUE obj, VALUE dump)
 
 /*
  * call-seq:
- *   srand(number=0)    -> old_seed
+ *   srand(number)    -> old_seed
+ *   srand            -> old_seed
  *
  * Seeds the system pseudo-random number generator, Random::DEFAULT, with
  * +number+.  The previous seed value is returned.