Only print interp error if using CoreUtils.

Author: trulede

internal/execext/coreutils.go

@@ -7,14 +7,14 @@ import (
 	"github.com/go-task/task/v3/internal/env"
 )
 
-var useGoCoreUtils bool
+var UseGoCoreUtils bool
 
 func init() {
 	// If TASK_CORE_UTILS is set to either true or false, respect that.
 	// By default, enable on Windows only.
 	if v, err := strconv.ParseBool(env.GetTaskEnv("CORE_UTILS")); err == nil {
-		useGoCoreUtils = v
+		UseGoCoreUtils = v
 	} else {
-		useGoCoreUtils = runtime.GOOS == "windows"
+		UseGoCoreUtils = runtime.GOOS == "windows"
 	}
 }

internal/execext/exec.go

@@ -144,7 +144,7 @@ func ExpandFields(s string) ([]string, error) {
 }
 
 func execHandlers() (handlers []func(next interp.ExecHandlerFunc) interp.ExecHandlerFunc) {
-	if useGoCoreUtils {
+	if UseGoCoreUtils {
 		handlers = append(handlers, coreutils.ExecHandler)
 	}
 	return handlers

task.go

@@ -358,8 +358,10 @@ func (e *Executor) runCommand(ctx context.Context, t *ast.Task, call *Call, i in
 		if err != nil {
 			var exitCode interp.ExitStatus
 			if !errors.As(err, &exitCode) {
-				// Convert the err to an interp.ExitStatus.
-				e.Logger.Errf(logger.Default, "%v\n", err)
+				if execext.UseGoCoreUtils {
+					// Convert the err from CoreUtil to an interp.ExitStatus.
+					e.Logger.Errf(logger.Default, "%v\n", err)
+				}
 				err = interp.ExitStatus(1)
 			}
 			if cmd.IgnoreError {