Reword the package summary to be a little easier to read.
Change-Id: I84a9301a02e228b46165410a429548b3774762d5
GitHub-Last-Rev:
1342c7219f0ed06144d3bca9acd77790707e4b77
GitHub-Pull-Request: golang/go#26052
Reviewed-on: https://go-review.googlesource.com/120795
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Package trace contains facilities for programs to generate trace
-// for Go execution tracer.
+// Package trace contains facilities for programs to generate traces
+// for the Go execution tracer.
//
// Tracing runtime activities
//