stevedonovan/Penlight — pull request #118 by ty93 (2014-08-11 19:10:44+00:00)
Title: Update stringx.lua

Bug in _find_all. Example:
> pl.stringx.rfind("abcaaaaa", "bc", 0, 4)
C:\Program Files (x86)\Lua\5.1\lua\pl\stringx.lua:109: attempt to compare number with nil