$s = "lib1 = require 'lfs'  for k, v in pairs(lib1) do print(k,v) end"    ; == OK
$s = 'lib1 = require ""lfs""  for k, v in pairs(lib1) do print(k,v) end'  ; == OK
$s = "lib1 = require ""lfs""  for k, v in pairs(lib1) do print(k,v) end"  ; == FAIL

; == AUFRUF
Run('lua -e ' & $s)