[BUG] - yaml mangled by whitespace removal in front/service-external

[cyanidium]

Describe the bug
d6bad0d introduced an extra whitespace removal dash that mangles front/service-external if .Values.front.externalService.type is not ClusterIP.

To Reproduce
Steps to reproduce the behavior (include specific Helm or Kubernetes commands if applicable):

1. Set .Values.front.externalService.type to LoadBalancer
2. Run helm template
3. Observe output Error: YAML parse error on mailu/templates/front/service-external.yaml: error converting YAML to JSON: yaml: line 22: mapping values are not allowed in this context

Templated output looks like:

spec:
  selector:
    ...
  type: LoadBalancerexternalTrafficPolicy: Local
  ports:

Notice that type and externalTrafficPolicy are on the same line

Expected behavior
The values should be on separate lines.

Environment (please complete the following information):

• Helm Chart Version: 2.5.1