DEV: Log duration of ember-cli asset build (PR #13980)

GitHub

  STDERR.puts "Done '#{task}' : #{(start_clock - start).round(2)} secs"

Instead of having to start the clock manually and track it in a variable, what do you think about passing a block to the method?

log_task_duration('yarn install') { # do something }

Looks good to me :+1: