updates regex for lenient whitespace in app-staging /etc/hosts
updates regex for lenient whitespace in app-staging /etc/hosts

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