Add a line break to imported sources in case they end in a comment
Add a line break to imported sources in case they end in a comment

mcshaz/polyfill-service,mcshaz/polyfill-service,JakeChampion/polyfill-service,jonathan-fielding/polyfill-service,kdzwinel/polyfill-service,kdzwinel/polyfill-service,JakeChampion/polyfill-service,jonathan-fielding/polyfill-service,jonathan-fielding/polyfill-service,kdzwinel/polyfill-service,mcshaz/polyfill-service