Start and stop precaching agent if appropriate

code/cli/munki/shared/updatecheck/download.swift

@@ -432,7 +432,7 @@ let PRECACHING_AGENT_LABEL = "com.googlecode.munki.precache_agent"
 
 /// Kick off a run of our precaching agent, which allows the precaching to
 /// run in the background after a normal Munki run
-func runPrecachingAgent() {
+func startPrecachingAgent() {
     if itemsToPrecache(getInstallInfo() ?? PlistDict()).isEmpty {
         // nothing to precache
         displayDebug1("Nothing found to precache.")

code/cli/munki/shared/updatecheck/updatecheck.swift

@@ -277,7 +277,7 @@ func checkForUpdates(clientID: String? = nil, localManifestPath: String? = nil)
     }
 
     // stop precaching_agent if it's running
-    // TODO: stopPrecachingAgent()
+    stopPrecachingAgent()
 
     // prevent idle sleep only if we are on AC power
     var caffeinator: Caffeinator? = nil
@@ -547,7 +547,7 @@ func checkForUpdates(clientID: String? = nil, localManifestPath: String? = nil)
 
     // start our precaching agent
     // note -- this must happen _after_ InstallInfo.plist gets written to disk.
-    // TODO: download.run_precaching_agent()
+    startPrecachingAgent()
 
     if !success {
         return .finishedWithErrors