Fix error in Travis CI YAML
Fix error in Travis CI YAML

prettydiff/atom-beautify,prettydiff/atom-beautify,prettydiff/atom-beautify,Glavin001/atom-beautify,Glavin001/atom-beautify,Glavin001/atom-beautify,Glavin001/atom-beautify,Glavin001/atom-beautify,prettydiff/atom-beautify