Add a tad more clarity to Constraint::Display #10

Job	Run time
init	3s
build / vendor	7m 18s
build / Build (aarch64-unknown-linux-gnu)	12m 44s
build / Build (x86_64-apple-darwin)	28m 13s
build / Build (aarch64-apple-darwin)	9m 48s
build / Build (x86_64-unknown-linux-gnu)	7m 56s
build / Build (x86_64-pc-windows-msvc)	38m 45s
build / Build (-pm, x86_64-apple-darwin)	50m 14s
build / Build (-pm, aarch64-apple-darwin)	8m 42s
build / Build (-pm, x86_64-pc-windows-msvc)	38m 51s
build / Build (-pm, aarch64-unknown-linux-gnu)	7m 2s
build / Build (-pm, x86_64-unknown-linux-gnu)	8m 8s
publish	9m 45s
deploy	0s
	3h 47m 29s

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