net: correct comment for ListenConfig.ListenPacket

Fixes #74634

Change-Id: I21196c4aef1b717bfda0b54e61b35e83cfa9dc1b
Reviewed-on: https://go-review.googlesource.com/c/go/+/689075
Reviewed-by: Sean Liao <sean@liao.dev>
Auto-Submit: Sean Liao <sean@liao.dev>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mark Freeman <mark@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>

Author: lyledean1

src/net/dial.go

@@ -837,7 +837,7 @@ func (lc *ListenConfig) Listen(ctx context.Context, network, address string) (Li
 // parameters.
 //
 // The ctx argument is used while resolving the address on which to listen;
-// it does not affect the returned Listener.
+// it does not affect the returned PacketConn.
 func (lc *ListenConfig) ListenPacket(ctx context.Context, network, address string) (PacketConn, error) {
 	addrs, err := DefaultResolver.resolveAddrList(ctx, "listen", network, address, nil)
 	if err != nil {