Make capability in --help human readable #438

Job	Run time
Prepare the run	5s
alpine-linux-x64	0s
linux-x64-hs-zero / build (debug)	13m 12s
linux-x86-hs / build (debug)	15m 41s
linux-x86-hs / build (release)	22m 34s
docs / build (debug)	2m 54s
linux-x64 / build (debug)	54s
linux-x64-hs-nopch / build (debug)	22m 28s
linux-x64 / build (release)	1m 33s
linux-cross-compile / build (aarch64)	28m 2s
linux-cross-compile / build (arm)	19m 47s
linux-cross-compile / build (s390x)	20m 19s
linux-x64-hs-minimal / build (debug)	7m 57s
linux-cross-compile / build (ppc64le)	25m 36s
linux-x64-hs-optimized / build (debug)	17m 50s
linux-cross-compile / build (riscv64)	24m 46s
macos-aarch64 / build (debug)	53s
macos-x64 / build (debug)	1m 11s
windows-aarch64 / build (debug)	18m 34s
macos-x64 / build (release)	1m 13s
macos-aarch64 / build (release)	48s
windows-aarch64 / build (release)	16m 33s
windows-x64 / build (debug)	3m 49s
windows-x64 / build (release)	3m 4s
macos-aarch64	0s
macos-x64	0s
linux-x64	0s
windows-x64	0s
	4h 29m 43s

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