Minor error in `message` field reference for linux_service_started_or_enabled

[DipsyTipsy]

Is your feature request related to a problem? Please describe.
The risk message for linux_service_started_or_enabled is malformed, as the reference to the dest field is missing a $

security_content/detections/endpoint/linux_service_started_or_enabled.yml

Line 57 in 64a8212

message: a commandline $process$ that may create or start a service on $dest

Describe the solution you'd like
Adding a single $ at the end should fix the issue. Could also capitalize the message for consistency.

message: A commandline $process$ that may create or start a service on $dest$

[nasbench]

Hey @DipsyTipsy thanks for reporting this. I got a fix going in #3705 and will be part of the release next week