[FAB-1696] Fix typo s/absolute/preferred/ in message

Change-Id: I2a6331d35cab0efa143f8e1b19fe51e09c73fdc6
Signed-off-by: Luis Sanchez <sanchezl@us.ibm.com>

orderer/common/sharedconfig/sharedconfig.go

@@ -201,7 +201,7 @@ func (pm *ManagerImpl) ProposeConfig(configItem *cb.ConfigurationItem) error {
 			return fmt.Errorf("Attempted to set the batch size absolute max bytes to an invalid value: 0")
 		}
 		if batchSize.PreferredMaxBytes == 0 {
-			return fmt.Errorf("Attempted to set the batch size absolute max bytes to an invalid value: 0")
+			return fmt.Errorf("Attempted to set the batch size preferred max bytes to an invalid value: 0")
 		}
 		if batchSize.PreferredMaxBytes > batchSize.AbsoluteMaxBytes {
 			return fmt.Errorf("Attempted to set the batch size preferred max bytes (%v) greater than the absolute max bytes (%v).", batchSize.PreferredMaxBytes, batchSize.AbsoluteMaxBytes)