Fix: change display impl to match as str #785

Job	Run time
cargo check	1m 14s
cargo hack check --feature-powerset	2m 4s
Test Coverage	1m 52s
Minimal Versions Testing	1m 4s
check for semver compatibility	1m 48s
check for no_std compatibility	1m 6s
Documentation check	1m 24s
Unit, Style, and Lint Testing	3m 36s
	14m 8s

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