Merge pull request #2715 from jamescowens/implement_greylist_display #2823

Job	Run time
Lint	51s
ARM [GOAL install] [buster]	2m 7s
Win32	3m 35s
macOS 12 native [GOAL install] [GUI] [no depends]	6m 55s
Win64	5m 9s
i386 Linux [GOAL install] [focal]	2m 13s
x86_64 Linux [GOAL install] [GUI] [focal] [no depends]	14m 2s
x86_64 Linux [GOAL install] [GUI] [bionic] [no depends]	12m 6s
macOS 10.14 [GOAL deploy] [GUI] [no tests] [focal]	9m 48s
	56m 46s

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