Editing WoW:API strlower

{{luaapi}}
Gets a string with all lower case letters instead of upper case.
 lowerS = string.lower(s)
 lowerS = strlower(s)

== Arguments ==
; s : String - The string to convert

== Returns ==
; lowerS : String - The same string as passed in, but with lower case characters instead of upper case ones.

== Example ==
 > = string.lower("Hello, Lua user!")
 hello, lua user!