applicationpath parameter is not needed with macOS 10.14 or better

[paulschreiber]

To Reproduce
Steps to reproduce the behavior:

1. Put "Install macOS Mojave" in /Applications
2. Run make all

Expected behavior
No warnings

Actual behavior

WARNING: "--applicationpath" is deprecated in macOS 10.14 and greater. Please remove it from your invocation.

Additional context

[2020-12-07 10:03:09] Creating image '/Users/paul/VirtualBox VMs/macOS-VM.dmg' (takes a while, version 14.6.06, will need sudo)...
[2020-12-07 10:03:09] .
created: /Users/paul/VirtualBox VMs/macOS-VM.dmg

/dev/disk3          	Apple_partition_scheme         	
/dev/disk3s1        	Apple_partition_map            	
/dev/disk3s2        	Apple_HFS                      	/Volumes/macOS-VM
WARNING: "--applicationpath" is deprecated in macOS 10.14 and greater. Please remove it from your invocation.
Erasing disk: 0%... 10%...
 20%...
 30%... 100%
Copying to disk: 0%...
 10%...
 20%...
 30%...
 40%...
 100%
Making disk bootable...
Copying boot files...
Install media now available at "/Volumes/Install macOS Mojave"
"disk3" ejected.

[AlexanderWillner]

If the parameter is removed, the installation of macOS 10.13 and older wouldn't work. So having a warning (not an error) is fine imho. No?

[paulschreiber]

Can you detect which version of macOS you're installing and use it only when needed?