[guide] Update syntax in `eol-last` examples
[guide] Update syntax in `eol-last` examples

addshoppers/javascript,webcoding/javascript-style-guide,pokelondon/javascript,getjll/JavaScript-Style-Guide,whichdigital/javascript-coding-standards,nulogy/javascript,appcom-interactive/javascript,naustudio/javascript,xalexec/javascript,airbnb/javascript,ljharb/javascript,cloudability/javascript-style-guide,LodoSoftware/javascript-style-guide,bl00mber/javascript,naustudio/javascript,practicefusion/javascript,allanfish/javascript,LodoSoftware/javascript-style-guide