Update err message when dial ctx is nil

guseggert · nhooyr · guseggert · commit 54809d605a9c · 2023-03-07T09:53:29.000-05:00
Co-authored-by: Anmol Sethi &lt;hi@nhooyr.io&gt;
diff --git a/dial.go b/dial.go
@@ -159,7 +159,7 @@ func handshakeRequest(ctx context.Context, urls string, opts *DialOptions, copts
 
 	req, err := http.NewRequestWithContext(ctx, "GET", u.String(), nil)
 	if err != nil {
-		return nil, fmt.Errorf("failed to build HTTP request: %w", err)
+		return nil, fmt.Errorf("http.NewRequestWithContext failed: %w", err)
 	}
 	req.Header = opts.HTTPHeader.Clone()
 	req.Header.Set("Connection", "Upgrade")

Original file line number	Diff line number	Diff line change
`@@ -159,7 +159,7 @@ func handshakeRequest(ctx context.Context, urls string, opts *DialOptions, copts`
`159`	`159`
`160`	`160`	`req, err := http.NewRequestWithContext(ctx, "GET", u.String(), nil)`
`161`	`161`	`if err != nil {`
`162`		`- return nil, fmt.Errorf("failed to build HTTP request: %w", err)`
	`162`	`+ return nil, fmt.Errorf("http.NewRequestWithContext failed: %w", err)`
`163`	`163`	`}`
`164`	`164`	`req.Header = opts.HTTPHeader.Clone()`
`165`	`165`	`req.Header.Set("Connection", "Upgrade")`