Fixed possible exception in logging

Redth / HttpTwo

A basic C# HTTP/2 client library

Apache License 2.0

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Fixed possible exception in logging #11

Open bahusoid opened 7 years ago

bahusoid commented 7 years ago

It's a fix for #10 issue.

Get rid of duplicate string.Format calls. Fix possible FormatExcetpion in two cases: 1) format argument parameter is a string with '{' 2) When initial message is not a format string but it contains '{'