remove extra new lines before error messages (#1875)

Author: Shell32-Natsu

e2e/testdata/fn-render/success-stdout/.expected/diff.patch

@@ -1,15 +1,14 @@
 diff --git a/resources.yaml b/resources.yaml
-index 7a494c9..c77c357 100644
+index 7a494c9..a9dd224 100644
 --- a/resources.yaml
 +++ b/resources.yaml
-@@ -14,13 +14,26 @@
- apiVersion: apps/v1
+@@ -15,12 +15,25 @@ apiVersion: apps/v1
  kind: Deployment
  metadata:
-+  labels:
-+    tier: backend
    name: nginx-deployment
 +  namespace: staging
++  labels:
++    tier: backend
  spec:
    replicas: 3
 +  selector:
@@ -23,9 +22,9 @@ index 7a494c9..c77c357 100644
  apiVersion: custom.io/v1
  kind: Custom
  metadata:
-+  labels:
-+    tier: backend
    name: custom
 +  namespace: staging
++  labels:
++    tier: backend
  spec:
    image: nginx:1.2.3

internal/errors/resolver/git.go

@@ -117,7 +117,7 @@ func (*fnExecErrorResolver) Resolve(err error) (ResolvedResult, bool) {
 	// TODO: write complete details to a file
 
 	return ResolvedResult{
-		Message: fnErr.String(),
+		Message:  fnErr.String(),
 		ExitCode: 1,
 	}, true
 }

main.go

@@ -77,7 +77,7 @@ func handleErr(cmd *cobra.Command, err error) int {
 	// error message.
 	re, resolved := resolver.ResolveError(err)
 	if resolved {
-		fmt.Fprintf(cmd.ErrOrStderr(), "\n%s \n", re.Message)
+		fmt.Fprintf(cmd.ErrOrStderr(), "%s \n", re.Message)
 		return re.ExitCode
 	}