curl: override any "-w" options that might exist

See the code comment for an explanation.

curl/command.go

@@ -14,6 +14,11 @@ func Command(ctx context.Context, url string, options ...Option) *exec.Cmd {
 			args = append(args, arg)
 		}
 	}
+	// Override any settings that users might have by default - for example,
+	// Kevin Burke has "-w \n" in his .curlrc file. Adding a new line to the end
+	// of the file is great for readability for most responses but breaks pprof
+	// and trace parsing.
+	args = append(args, "-w", "")
 
 	return exec.CommandContext(ctx, "curl", args...)
 }