rubinius/rubinius — pull request #1310 by frodriguezsanc (2011-10-20 05:38:00+00:00)
Title: Fix String#upto for 1.9

Hi, i made the 'upto' method doesn't call a block when the stop length is less than the self length.

PD: I'm sorry, i messed up on the last pull request.