Norman Maurer 4b22d8ab35
Use WebSocketVersion.toAsciiString() as header value when possible (#10105)
Motivation:

In our WebSocketClientHandshaker* implementations we "hardcode" the version number to use. This is error-prone, we should better use the WebSocketVersion so we dont need to maintain the value multiple times. Beside this we can also use an AsciiString to improve performance

Modifications:

- Use WebSocketVersion.toAsciiString

Result:

Less stuff to maintain and small performance win
2020-03-13 07:48:58 +01:00
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