Fix panic in MetadataKey::from_bytes #1246
Merged
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Motivation
I tried using
BinaryMetadataKey::from_bytes
to parse a header value, but noticed it inconveniently panics on values that don't end in-bin
.Solution
I assume this is a bug since the signature of this function suggests it returns an error on failure, and the documentation makes no mention of panicking.
This PR fixes it to return an error instead.