Fix double negative statement
Fix double negative statement

This is mostly for consistency with its own install script.

davidsiefert/dokku,codeconfab/dokku,paralin/crew,crisward/dokku,econya/dokku,TribeMedia/dokku,alexquick/dokku,fruitl00p/dokku,expa/dokku,codeconfab/dokku,fmoliveira/dokku,fruitl00p/dokku,beedesk/dokku,davidsiefert/dokku,amaltson/dokku,Cactusbone/dokku,netbrick/dokku,emdantrim/dokku,alessio/dokku,u2mejc/dokku,Fab-IT-ApS/dokku,sebastianscatularo/dokku,bkniffler/dokku,Evlos/dokku,beedesk/dokku,sseemayer/dokku,vkurup/dokku,tilgovi/dokku,experimental-platform/dokku,bobvanderlinden/dokku,barseghyanartur/dokku,rocLv/dokku,TribeMedia/dokku,vijayviji/dokku,expa/dokku,pmvieira/dokku,henrik/dokku,AnselZhangGit/dokku,claytonbrown/dokku,dokku/dokku,sebastianscatularo/dokku,jazzzz/dokku,davidsiefert/dokku,eljojo/dokku,AnselZhangGit/dokku,u2mejc/dokku,mrluc/dokku,jimjag/dokku,fmoliveira/dokku,dokku/dokku,elia/dokku,basicer/dokku,econya/dokku,AnselZhangGit/dokku,jamesmarva/dokku,henrik/dokku,beedesk/dokku,econya/dokku,callahad/dokku,AnselZhangGit/dokku,sebastianscatularo/dokku,callahad/dokku,mrluc/dokku,bkniffler/dokku,sseemayer/dokku,rocLv/dokku,pmvieira/dokku,mouserage/dokku,henrik/dokku,bkniffler/dokku,beedesk/dokku,suxor42/dokku,vlipco/dokku,ertrzyiks/dokku,gianpaj/dokku,Evlos/dokku,Evlos/dokku,johnfraney/dokku,vijayviji/dokku,barseghyanartur/dokku,biddyweb/dokku,ertrzyiks/dokku,expa/dokku,Git-Host/dokku,fruitl00p/dokku,Git-Host/dokku,claytonbrown/dokku,mrluc/dokku,barseghyanartur/dokku,claytonbrown/dokku,Cactusbone/dokku,codeconfab/dokku,jazzzz/dokku,ertrzyiks/dokku,rocLv/dokku,emdantrim/dokku,progrium/dokku,klodoo/dokku,TribeMedia/dokku,mrluc/dokku,alexquick/dokku,pmvieira/dokku,johnfraney/dokku,omeid/dokku,jazzzz/dokku,ertrzyiks/dokku,fmoliveira/dokku,biddyweb/dokku,davidsiefert/dokku,progrium/dokku,experimental-platform/dokku,vijayviji/dokku,Cactusbone/dokku,amaltson/dokku,matto1990/dokku,jazzzz/dokku,alexquick/dokku,matto1990/dokku,netbrick/dokku,jimjag/dokku,netbrick/dokku,eljojo/dokku,claytonbrown/dokku,basicer/dokku,matto1990/dokku,jimjag/dokku,Cactusbone/dokku,henrik/dokku,eljojo/dokku,sebastianscatularo/dokku,crisward/dokku,stepri/dokku,jimjag/dokku,vlipco/dokku,fmoliveira/dokku,stepri/dokku,alexquick/dokku,gianpaj/dokku,dokku/dokku,jimeh/dokku,stepri/dokku,alessio/dokku,amaltson/dokku,mrluc/dokku,dokku/dokku,netbrick/dokku,progrium/dokku,Fab-IT-ApS/dokku,klodoo/dokku,netbrick/dokku,davidsiefert/dokku,rocLv/dokku,mouserage/dokku,experimental-platform/dokku,vijayviji/dokku,johnfraney/dokku,akatrevorjay/dokku,pmvieira/dokku,Cactusbone/dokku,crisward/dokku,progrium/dokku,bobvanderlinden/dokku,Fab-IT-ApS/dokku,vlipco/dokku,eljojo/dokku,amaltson/dokku,omeid/dokku,biddyweb/dokku,amaltson/dokku,claytonbrown/dokku,alessio/dokku,claytonbrown/dokku,jimeh/dokku,mrluc/dokku,stepri/dokku,barseghyanartur/dokku,sebastianscatularo/dokku,johnfraney/dokku,ertrzyiks/dokku,jimeh/dokku,davidsiefert/dokku,expa/dokku,tilgovi/dokku,emdantrim/dokku,Cactusbone/dokku,basicer/dokku,codeconfab/dokku,akatrevorjay/dokku,mouserage/dokku,codeconfab/dokku,beedesk/dokku,barseghyanartur/dokku,TribeMedia/dokku,omeid/dokku,alessio/dokku,bkniffler/dokku,fruitl00p/dokku,expa/dokku,akatrevorjay/dokku,jimeh/dokku,vkurup/dokku,jazzzz/dokku,crisward/dokku,codeconfab/dokku,elia/dokku,biddyweb/dokku,fruitl00p/dokku,tilgovi/dokku,netbrick/dokku,gianpaj/dokku,matto1990/dokku,progrium/dokku,gianpaj/dokku,jamesmarva/dokku,Evlos/dokku,Evlos/dokku,jamesmarva/dokku,u2mejc/dokku,johnfraney/dokku,codeconfab/dokku,elia/dokku,experimental-platform/dokku,paralin/crew,johnfraney/dokku,gianpaj/dokku,vijayviji/dokku,fmoliveira/dokku,Fab-IT-ApS/dokku,u2mejc/dokku,dokku/dokku,eljojo/dokku,biddyweb/dokku,rocLv/dokku,pmvieira/dokku,u2mejc/dokku,stepri/dokku,suxor42/dokku,bobvanderlinden/dokku,bobvanderlinden/dokku,suxor42/dokku,davidsiefert/dokku,callahad/dokku,fruitl00p/dokku,henrik/dokku,vijayviji/dokku,bkniffler/dokku,Git-Host/dokku,econya/dokku,bkniffler/dokku,basicer/dokku,bkniffler/dokku,bobvanderlinden/dokku,jazzzz/dokku,experimental-platform/dokku,suxor42/dokku,stepri/dokku,eljojo/dokku,sseemayer/dokku,sseemayer/dokku,alessio/dokku,sseemayer/dokku,vkurup/dokku,Git-Host/dokku,tilgovi/dokku,jimeh/dokku,emdantrim/dokku,akatrevorjay/dokku,basicer/dokku,tilgovi/dokku,rocLv/dokku,akatrevorjay/dokku,vlipco/dokku,fruitl00p/dokku,vlipco/dokku,matto1990/dokku,elia/dokku,AnselZhangGit/dokku,amaltson/dokku,elia/dokku,suxor42/dokku,klodoo/dokku,jazzzz/dokku,rocLv/dokku,matto1990/dokku,TribeMedia/dokku,Fab-IT-ApS/dokku,fmoliveira/dokku,gianpaj/dokku,econya/dokku,callahad/dokku,econya/dokku,biddyweb/dokku,bobvanderlinden/dokku,expa/dokku,jazzzz/dokku,Fab-IT-ApS/dokku,biddyweb/dokku,emdantrim/dokku,emdantrim/dokku,Evlos/dokku,u2mejc/dokku,mouserage/dokku,elia/dokku,experimental-platform/dokku,biddyweb/dokku,Fab-IT-ApS/dokku,vijayviji/dokku,alexquick/dokku,AnselZhangGit/dokku,omeid/dokku,vlipco/dokku,emdantrim/dokku,tilgovi/dokku,rocLv/dokku,basicer/dokku,jamesmarva/dokku,ertrzyiks/dokku,barseghyanartur/dokku,klodoo/dokku,Fab-IT-ApS/dokku,crisward/dokku,barseghyanartur/dokku,mouserage/dokku,amaltson/dokku,AnselZhangGit/dokku,akatrevorjay/dokku,progrium/dokku,crisward/dokku,davidsiefert/dokku,alexquick/dokku,TribeMedia/dokku,u2mejc/dokku,gianpaj/dokku,dokku/dokku,klodoo/dokku,alessio/dokku,claytonbrown/dokku,mouserage/dokku,callahad/dokku,pmvieira/dokku,progrium/dokku,elia/dokku,matto1990/dokku,sseemayer/dokku,mouserage/dokku,TribeMedia/dokku,pmvieira/dokku,vlipco/dokku,experimental-platform/dokku,Git-Host/dokku,progrium/dokku,vkurup/dokku,netbrick/dokku,sebastianscatularo/dokku,alexquick/dokku,ertrzyiks/dokku,sseemayer/dokku,ertrzyiks/dokku,henrik/dokku,crisward/dokku,Git-Host/dokku,johnfraney/dokku,Git-Host/dokku,jimeh/dokku,vkurup/dokku,akatrevorjay/dokku,klodoo/dokku,henrik/dokku,jamesmarva/dokku,jimeh/dokku,fruitl00p/dokku,matto1990/dokku,Git-Host/dokku,vijayviji/dokku,eljojo/dokku,stepri/dokku,vlipco/dokku,callahad/dokku,klodoo/dokku,AnselZhangGit/dokku,econya/dokku,jimjag/dokku,alexquick/dokku,tilgovi/dokku,beedesk/dokku,fmoliveira/dokku,expa/dokku,econya/dokku,pmvieira/dokku,bobvanderlinden/dokku,basicer/dokku,akatrevorjay/dokku,omeid/dokku,klodoo/dokku,vkurup/dokku,experimental-platform/dokku,codeconfab/dokku,emdantrim/dokku,netbrick/dokku,jimjag/dokku,Evlos/dokku,omeid/dokku,mouserage/dokku,gianpaj/dokku,barseghyanartur/dokku,expa/dokku,suxor42/dokku,claytonbrown/dokku,stepri/dokku,sebastianscatularo/dokku,bobvanderlinden/dokku,Cactusbone/dokku,dokku/dokku,jamesmarva/dokku,jimeh/dokku,mrluc/dokku,eljojo/dokku,dokku/dokku,alessio/dokku,alessio/dokku,basicer/dokku,omeid/dokku,jamesmarva/dokku,callahad/dokku,vkurup/dokku,jimjag/dokku,sebastianscatularo/dokku,Evlos/dokku,mrluc/dokku,fmoliveira/dokku,omeid/dokku,jamesmarva/dokku,TribeMedia/dokku,suxor42/dokku,suxor42/dokku,henrik/dokku,sseemayer/dokku,vkurup/dokku,beedesk/dokku,Cactusbone/dokku,amaltson/dokku,crisward/dokku,callahad/dokku,jimjag/dokku,u2mejc/dokku,tilgovi/dokku,elia/dokku,johnfraney/dokku,beedesk/dokku,bkniffler/dokku