fix(@angular/cli): chunk log so output is piped properly
fix(@angular/cli): chunk log so output is piped properly

Previously the output of some commands with long one-line log would not be
drained properly when piping it, causing it to be truncated.

filipesilva/angular-cli,ocombe/angular-cli,manekinekko/angular-cli,DevIntent/angular-cli,beeman/angular-cli,hansl/angular-cli,clydin/angular-cli,beeman/angular-cli,hansl/angular-cli,clydin/angular-cli,beeman/angular-cli,ocombe/angular-cli,geofffilippi/angular-cli,angular/angular-cli,catull/angular-cli,filipesilva/angular-cli,clydin/angular-cli,DevIntent/angular-cli,ocombe/angular-cli,geofffilippi/angular-cli,filipesilva/angular-cli,filipesilva/angular-cli,geofffilippi/angular-cli,ocombe/angular-cli,hansl/angular-cli,angular/angular-cli,manekinekko/angular-cli,beeman/angular-cli,Brocco/angular-cli,angular/angular-cli,Brocco/angular-cli,catull/angular-cli,angular/angular-cli,hansl/angular-cli,clydin/angular-cli,catull/angular-cli,catull/angular-cli,DevIntent/angular-cli,DevIntent/angular-cli,DevIntent/angular-cli,Brocco/angular-cli,geofffilippi/angular-cli,manekinekko/angular-cli,Brocco/angular-cli,Brocco/angular-cli,ocombe/angular-cli