feat(next): keep original string on unknown variants #1134

Job	Run time
format	15s
Docs	56s
clippy (default-tls)	1m 24s
Check Examples	42s
clippy (rustls-tls-webpki-roots)	1m 22s
Stripe Mock Tests (default-tls)	1m 11s
clippy (rustls-tls-native)	1m 23s
Test Clients (default-tls)	1m 41s
Stripe Mock Tests (rustls-tls-webpki-roots)	1m 15s
clippy (async-std-surf)	1m 38s
Test Clients (rustls-tls-webpki-roots)	1m 40s
verify-codegen-crate	1m 56s
Stripe Mock Tests (rustls-tls-native)	1m 11s
Test Clients (rustls-tls-native)	1m 37s
Test Clients (async-std-surf)	2m 1s
	20m 12s

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