| Index: service/datastore/index.go
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| diff --git a/service/datastore/index.go b/service/datastore/index.go
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| index 4c2af0779146b8fe8d2827f90efcf2efe4e4c914..d06bd9067f2a9f06991ca6559c3a4745896c7f15 100644
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| --- a/service/datastore/index.go
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| +++ b/service/datastore/index.go
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| @@ -24,6 +24,7 @@ type IndexColumn struct {
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|  // `+Field` is invalid. `` is invalid.
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|  func ParseIndexColumn(spec string) (IndexColumn, error) {
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|  	col := IndexColumn{}
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| +	spec = strings.TrimSpace(spec)
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|  	if strings.HasPrefix(spec, "-") {
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|  		col.Descending = true
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|  		col.Property = strings.TrimSpace(spec[1:])
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| @@ -33,7 +34,7 @@ func ParseIndexColumn(spec string) (IndexColumn, error) {
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|  		col.Property = strings.TrimSpace(spec)
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|  	}
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|  	if col.Property == "" {
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| -		return col, fmt.Errorf("datastore: empty order")
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| +		return col, fmt.Errorf("datastore: empty order: %q", spec)
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|  	}
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|  	return col, nil
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|  }
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| 
 |