BuildHaikuPackage rule: Locate extract script

Missed that when adding the script. Therefore it would be created in the
current directory and when building multiple packages concurrently the
script would be overwritten.

build/jam/PackageRules

@@ -342,7 +342,8 @@ rule BuildHaikuPackage package : packageInfo
 	local copyFilesScript = <$(grist)>haiku.package-copy-files ;
 	local extractFilesScript = <$(grist)>haiku.package-extract-files ;
 
-	MakeLocate $(makeDirsScript) $(copyFilesScript) : $(scriptDir) ;
+	MakeLocate $(makeDirsScript) $(copyFilesScript) $(extractFilesScript)
+		: $(scriptDir) ;
 
 	CreateContainerMakeDirectoriesScript $(package) : $(makeDirsScript) ;
 	CreateContainerCopyFilesScript $(package) : $(copyFilesScript) ;