[Sass] Add better UI for detecting syntax errors with --watch and --update.
[Sass] Add better UI for detecting syntax errors with --watch and --update.

uniba/hamldoc_ja,dylannnn/sass,tangposmarvin/haml,xzyfer/sass,PMArtz92/sass,amatsuda/haml,danielfein/sass,stanhu/haml,chriseppstein/haml,JuanitoFatas/sass,HugoRLopes/sass,Nzaga/sass,haml/haml,liquidmetal/sass,PMArtz92/sass,cmpereirasi/sass,concord-consortium/haml,modulexcite/sass,Industrys/sass,antonifs/sass,liquidmetal/sass,DanteKaris/sass,chriseppstein/sass,zaru/sass,dg1dd1ngs/haml,HugoRLopes/sass,Iamronan/sass,Galactix/sass,jaroot32/sass,nazar-pc/haml,dg1dd1ngs/haml,Anshdesire/sass,DanteKaris/sass,nicklima/sass,nicklima/sass,srinivashappy/sass,nickg33/sass,modulexcite/sass,keithpitty/haml,jaroot32/sass,tangposmarvin/sass,keithpitty/haml,purcell/haml,tangposmarvin/haml,tenderlove/sass,schneems/sass,Industrys/sass,Iamronan/sass,ridixcr/sass,MetaAshley/sass,stewx/sass,Nzaga/sass,antonifs/sass,cmpereirasi/sass,srawlins/sass,Ahnita/sass,dylannnn/sass,zaru/sass,Andrey-Pavlov/sass,StephanieMak/sass,Anshdesire/sass,danielfein/sass,nickg33/sass,srawlins/sass,briangonzalez/sass,saper/sass,OrenBochman/sass,baiyanghese/sass,xzyfer/sass,MetaAshley/sass,ridixcr/sass,amitsuroliya/sass,OrenBochman/sass,lmetla/sass,tangposmarvin/sass,14113/sass,lmetla/sass,rammy7219/sass,nazar-pc/haml,Andrey-Pavlov/sass,saper/sass,askl56/sass,JuanitoFatas/sass,sideci-sample/sideci-sample-haml,oss-practice/sass,stewx/sass,hcatlin/sass,Ahnita/sass,macressler/haml,stanhu/haml,chriseppstein/haml,schneems/sass,Galactix/sass,askl56/sass,srinivashappy/sass,hcatlin/sass,rammy7219/sass,macressler/haml,StephanieMak/sass,haml/haml,haml/haml,haml/haml,amitsuroliya/sass