Fix shell syntax in Travis CI config file
Fix shell syntax in Travis CI config file

pombredanne/fabtools,ronnix/fabtools,wagigi/fabtools-python,badele/fabtools,n0n0x/fabtools-python,sociateru/fabtools,davidcaste/fabtools,AMOSoft/fabtools,bitmonk/fabtools,hagai26/fabtools,prologic/fabtools,fabtools/fabtools,ahnjungho/fabtools