PlatformSetup: for lime setup hashlink, display the "leave empty to u… #1360

Job	Run time
android	25m 37s
flash-samples	39s
air-samples (4.0.5)	3m 9s
docs	35s
air-samples (4.1.5)	3m 27s
air-samples (4.2.5)	3m 19s
ios	12m 6s
air-samples (4.3.1)	3m 28s
html5-samples	1m 31s
linux	14m 59s
macos	55m 34s
windows	16m 2s
package-haxelib	2m 0s
hashlinkc-samples (windows-latest)	1m 27s
hashlink-samples (windows-latest)	53s
hashlinkc-samples (ubuntu-20.04)	1m 39s
hashlink-samples (ubuntu-20.04)	17s
hashlinkc-samples (macos-12)	1m 50s
hashlink-samples (macos-12)	45s
neko-samples (3.4.7, windows-latest)	45s
neko-samples (3.4.7, ubuntu-20.04)	17s
neko-samples (3.4.7, macos-12)	1m 12s
neko-samples (4.2.5, windows-latest)	45s
neko-samples (4.2.5, ubuntu-20.04)	18s
neko-samples (4.2.5, macos-12)	44s
notify	4s
	2h 33m 22s

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