[bugfix] Downstep otel to fix freebsd compile issue (#1773)

https://github.com/open-telemetry/opentelemetry-go/issues/4076

vendor/go.opentelemetry.io/otel/sdk/resource/auto.go

@@ -18,7 +18,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"strings"
 )
 
 var (
@@ -46,65 +45,28 @@ type Detector interface {
 // Detect calls all input detectors sequentially and merges each result with the previous one.
 // It returns the merged error too.
 func Detect(ctx context.Context, detectors ...Detector) (*Resource, error) {
-	r := new(Resource)
-	return r, detect(ctx, r, detectors)
-}
-
-// detect runs all detectors using ctx and merges the result into res. This
-// assumes res is allocated and not nil, it will panic otherwise.
-func detect(ctx context.Context, res *Resource, detectors []Detector) error {
-	var (
-		r    *Resource
-		errs detectErrs
-		err  error
-	)
-
+	var autoDetectedRes *Resource
+	var errInfo []string
 	for _, detector := range detectors {
 		if detector == nil {
 			continue
 		}
-		r, err = detector.Detect(ctx)
+		res, err := detector.Detect(ctx)
 		if err != nil {
-			errs = append(errs, err)
+			errInfo = append(errInfo, err.Error())
 			if !errors.Is(err, ErrPartialResource) {
 				continue
 			}
 		}
-		r, err = Merge(res, r)
+		autoDetectedRes, err = Merge(autoDetectedRes, res)
 		if err != nil {
-			errs = append(errs, err)
+			errInfo = append(errInfo, err.Error())
 		}
-		*res = *r
 	}
 
-	if len(errs) == 0 {
-		return nil
+	var aggregatedError error
+	if len(errInfo) > 0 {
+		aggregatedError = fmt.Errorf("detecting resources: %s", errInfo)
 	}
-	return errs
-}
-
-type detectErrs []error
-
-func (e detectErrs) Error() string {
-	errStr := make([]string, len(e))
-	for i, err := range e {
-		errStr[i] = fmt.Sprintf("* %s", err)
-	}
-
-	format := "%d errors occurred detecting resource:\n\t%s"
-	return fmt.Sprintf(format, len(e), strings.Join(errStr, "\n\t"))
-}
-
-func (e detectErrs) Unwrap() error {
-	switch len(e) {
-	case 0:
-		return nil
-	case 1:
-		return e[0]
-	}
-	return e[1:]
-}
-
-func (e detectErrs) Is(target error) bool {
-	return len(e) != 0 && errors.Is(e[0], target)
+	return autoDetectedRes, aggregatedError
 }