small functional improvements #1182

Job	Run time
Check Examples	1m 2s
clippy (default-tls)	1m 28s
Docs	1m 12s
clippy (rustls-tls-webpki-roots)	1m 30s
format	16s
clippy (rustls-tls-native)	1m 29s
Stripe Mock Tests (default-tls)	1m 55s
clippy (async-std-surf)	1m 43s
Test Clients (default-tls)	2m 10s
Stripe Mock Tests (rustls-tls-webpki-roots)	1m 52s
verify-codegen-crate	2m 1s
Test Clients (rustls-tls-webpki-roots)	2m 12s
Stripe Mock Tests (rustls-tls-native)	1m 58s
Test Clients (rustls-tls-native)	2m 10s
Test Clients (async-std-surf)	2m 27s
	25m 25s

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