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remove redundant colon introduced by mistake

Signed-off-by: allencloud <allen.sun@daocloud.io>

allencloud authored on 2017/02/13 11:16:57
Showing 1 changed files
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@@ -29,7 +29,7 @@ func (cli *Client) VolumesPrune(ctx context.Context, pruneFilters filters.Args)
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 	defer ensureReaderClosed(serverResp)
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 	if err := json.NewDecoder(serverResp.body).Decode(&report); err != nil {
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-		return report, fmt.Errorf("Error retrieving volume prune report:: %v", err)
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+		return report, fmt.Errorf("Error retrieving volume prune report: %v", err)
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 	}
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 	return report, nil