n

Change-Id: If135e6103cc0fac40a3724e2ba43a72f48c5fc9f

Author: qiulaidongfeng

src/os/exec/exec.go

@@ -643,7 +643,7 @@ func (c *Cmd) Start() error {
 		return c.Err
 	}
 	lp := c.Path
-	if c.cacheLookExtensions == "" {
+	if c.cacheLookExtensions != "" {
 		lp = c.cacheLookExtensions
 	}
 	if runtime.GOOS == "windows" && c.cacheLookExtensions == "" {

src/os/exec/exec_windows_test.go

@@ -12,7 +12,6 @@ import (
 	"io"
 	"os"
 	"os/exec"
-	"path/filepath"
 	"strconv"
 	"strings"
 	"syscall"
@@ -108,16 +107,3 @@ func TestChildCriticalEnv(t *testing.T) {
 		t.Error("no SYSTEMROOT found")
 	}
 }
-
-func TestIssue66586(t *testing.T) {
-	testenv.MustHaveGoBuild(t)
-	path := filepath.Join(testenv.GOROOT(t), "bin", "go")
-	cmd := exec.Cmd{Path: path, Args: []string{path, "version"}}
-	err := cmd.Run()
-	if err != nil {
-		t.Fatal(err)
-	}
-	if path != cmd.Path {
-		t.Fatalf("unexpected path: %s", cmd.Path)
-	}
-}