* random.c: Documentation fix for Random#bytes

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32255 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

random.c

@@ -921,7 +921,7 @@ rb_random_real(VALUE obj)
 }
 
 /*
- * call-seq: prng.bytes(size) -> prng
+ * call-seq: prng.bytes(size) -> a_string
  *
  * Returns a random binary string.  The argument size specified the length of
  * the result string.