fix: small comment update (#2304)

The comment talked about the server hanging up while
the response was being read.

The server hanging up while the response is read should not
be a problem. The client will still read whatever the server
has sent before getting to the fin/rst that closes the connection.

This error should only (I think) happen if the server hangs up
before sending a complete response or if the server sends an
invalid response.

Co-authored-by: John DiSanti <jdisanti@amazon.com>
Co-authored-by: Zelda Hessler <zhessler@amazon.com>

Author: 3 people

rust-runtime/aws-smithy-http/src/result.rs

@@ -334,7 +334,7 @@ pub enum SdkError<E, R = operation::Response> {
     DispatchFailure(DispatchFailure),
 
     /// A response was received but it was not parseable according the the protocol (for example
-    /// the server hung up while the body was being read)
+    /// the server hung up without sending a complete response)
     ResponseError(ResponseError<R>),
 
     /// An error response was received from the service