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os/exec: clarify that Wait must be called

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Fixes #52580

Change-Id: Ib2dd8a793b9c6fcb083abb3f7c346f6279adefc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/414056
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
Ian Lance Taylor 2022-06-24 14:34:28 -07:00
parent 177306f630
commit 53a4152d47
1 changed files with 2 additions and 2 deletions
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4
src/os/exec/exec.go
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@ -462,8 +462,8 @@ func lookExtensions(path, dir string) (string, error) {
//
// If Start returns successfully, the c.Process field will be set.
//
// The Wait method will return the exit code and release associated resources
// once the command exits.
// After a successful call to Start the Wait method must be called in
// order to release associated system resources.
func (c *Cmd) Start() error {
if c.Path == "" && c.Err == nil && c.lookPathErr == nil {
c.Err = errors.New("exec: no command")