WARNING: May throw. Gets an encoding, with proper respect for "utf8" as an alias for "utf-8"; Microsoft products don't support this prior to 2015-era, but it turns out to be common. We do have a linter elsewhere that reports a warning if it sees the dashless form. https://github.com/telerik/fiddler/issues/38

public static Encoding GetTextEncoding(
	string sEncoding
)

Public Shared Function GetTextEncoding ( 
	sEncoding As String
) As Encoding

public:
static Encoding^ GetTextEncoding(
	String^ sEncoding
)