simplify apptest cmd in snapci tests for development
simplify apptest cmd in snapci tests for development

garrettr/securedrop,micahflee/securedrop,ageis/securedrop,conorsch/securedrop,kelcecil/securedrop,jrosco/securedrop,heartsucker/securedrop,garrettr/securedrop,jeann2013/securedrop,jrosco/securedrop,jrosco/securedrop,ehartsuyker/securedrop,kelcecil/securedrop,heartsucker/securedrop,jaseg/securedrop,jrosco/securedrop,jeann2013/securedrop,chadmiller/securedrop,heartsucker/securedrop,conorsch/securedrop,micahflee/securedrop,ehartsuyker/securedrop,micahflee/securedrop,kelcecil/securedrop,conorsch/securedrop,pwplus/securedrop,jeann2013/securedrop,ageis/securedrop,kelcecil/securedrop,pwplus/securedrop,chadmiller/securedrop,jeann2013/securedrop,chadmiller/securedrop,conorsch/securedrop,ehartsuyker/securedrop,garrettr/securedrop,jeann2013/securedrop,ageis/securedrop,ehartsuyker/securedrop,jaseg/securedrop,pwplus/securedrop,ehartsuyker/securedrop,conorsch/securedrop,micahflee/securedrop,jrosco/securedrop,pwplus/securedrop,jrosco/securedrop,pwplus/securedrop,jaseg/securedrop,kelcecil/securedrop,ehartsuyker/securedrop,pwplus/securedrop,jaseg/securedrop,chadmiller/securedrop,heartsucker/securedrop,ageis/securedrop,jaseg/securedrop,chadmiller/securedrop,kelcecil/securedrop,jaseg/securedrop,chadmiller/securedrop,heartsucker/securedrop,jeann2013/securedrop,garrettr/securedrop