Tidy up command descriptions

Rewordings and removal of superfluous newlines.

Signed-off-by: Hidde Beydals <hello@hidde.co>

cmd/flux/create_source_helm.go

@@ -43,27 +43,25 @@ import (
 var createSourceHelmCmd = &cobra.Command{
 	Use:   "helm [name]",
 	Short: "Create or update a HelmRepository source",
-	Long: `
-The create source helm command generates a HelmRepository resource and waits for it to fetch the index.
+	Long: `The create source helm command generates a HelmRepository resource and waits for it to fetch the index.
 For private Helm repositories, the basic authentication credentials are stored in a Kubernetes secret.`,
-	Example: `  # Create a source from a public Helm repository
+	Example: `  # Create a source for a public Helm repository
   flux create source helm podinfo \
     --url=https://stefanprodan.github.io/podinfo \
     --interval=10m
 
-  # Create a source from a Helm repository using basic authentication
+  # Create a source for a Helm repository using basic authentication
   flux create source helm podinfo \
     --url=https://stefanprodan.github.io/podinfo \
     --username=username \
     --password=password
 
-  # Create a source from a Helm repository using TLS authentication
+  # Create a source for a Helm repository using TLS authentication
   flux create source helm podinfo \
     --url=https://stefanprodan.github.io/podinfo \
     --cert-file=./cert.crt \
     --key-file=./key.crt \
-    --ca-file=./ca.crt
-`,
+    --ca-file=./ca.crt`,
 	RunE: createSourceHelmCmdRun,
 }