fix rdoc. see r26808

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27209 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

random.c

@@ -424,7 +424,7 @@ rand_init(struct MT *mt, VALUE vseed)
  *
  * Creates new Mersenne Twister based pseudorandom number generator with
  * seed.  When the argument seed is omitted, the generator is initialized
- * with Random.seed.
+ * with Random.new_seed.
  *
  * The argument seed is used to ensure repeatable sequences of random numbers
  * between different runs of the program.