fix: small fixes

internal/agent/update.go

@@ -17,7 +17,7 @@ import (
 
 // doUpdate downloads the latest agent binary for this platform, atomically
 // replaces the running executable, and schedules a service restart. It never
-// uninstalls — only updates.
+// uninstalls - only updates.
 func (a *Agent) doUpdate() proto.TaskResult {
 	exe, err := os.Executable()
 	if err != nil {