message: Separate long warning messages across multiple newlines
diff: @@ -119,7 +119,7 @@ impl Manifest {
  release: bool,
  ) -> Result<(Option<String>, bool), failure::Error> {
  let use_dot_dev_warning =
  - "Please specify the workers_dot_dev boolean in the top level of your wrangler.toml";
  + format!("Please specify the workers_dot_dev boolean in the top level of your wrangler.toml.\n{} This command will fail in v1.5.0. Please see https://github.com/cloudflare/wrangler/blob/master/docs/environments.md for more information.", emoji::WARN);
  let wdd_failure = format!(
  "{} Your environment should only include `workers_dot_dev` or `route`. If you are trying to publish to workers.dev, remove `route` from your wrangler.toml, if you are trying to publish to your own domain, remove `workers_dot_dev`.",
  emoji::WARN
  @@ -136,7 +136,7 @@ impl Manifest {
  match self.workers_dot_dev {
  Some(_) => failure::bail!(use_dot_dev_warning),
  None => {
  - message::warn(use_dot_dev_warning);
  + message::warn(&use_dot_dev_warning);
  false // wrangler publish --release w/o workers_dot_dev is zoned deploy
  }
  }
  @@ -150,7 +150,7 @@ impl Manifest {
  }
  wdd
  } else {
  - message::warn(use_dot_dev_warning);
  + message::warn(&use_dot_dev_warning);
  true // wrangler publish w/o workers_dot_dev is zoneless deploy
  }
  }
  @@ -216,12 +216,12 @@ impl Manifest {
  ) -> Result<Target, failure::Error> {
  if release && self.workers_dot_dev.is_some() {
  failure::bail!(
  - "The --release flag is not compatible with use of the workers_dot_dev field"
  + "The --release flag is not compatible with use of the workers_dot_dev field."
  )
  }
  if release {
  - message::warn("--release will be deprecated in v1.5.0. Please see https://github.com/cloudflare/wrangler/blob/master/docs/environments.md for more information");
  + message::warn("--release will be deprecated.");
  }
  let mut target = Target {
  