[FAB-4440] Fix Consortium in configtxgen code

[FAB-4355] uses the Consortium section, as suggested by jason and david,
    this patchset update it to Consortium value.

Change-Id: I855d7a698b9c1ca32f79f9f8839a2fe7ac9912e0
Signed-off-by: Baohua Yang <baohyang@cn.ibm.com>

common/configtx/tool/configtxgen/main.go

@@ -72,7 +72,7 @@ func doOutputChannelCreateTx(conf *genesisconfig.Profile, channelID string, outp
 	}
 
 	if conf.Consortium == "" {
-		return fmt.Errorf("Cannot define a new channel with no Consortium section")
+		return fmt.Errorf("Cannot define a new channel with no Consortium value")
 	}
 
 	// XXX we ignore the non-application org names here, once the tool supports configuration updates

common/configtx/tool/configtxgen/main_test.go

@@ -62,14 +62,14 @@ func TestMissingOrdererSection(t *testing.T) {
 	assert.Error(t, doOutputBlock(config, "foo", blockDest), "Missing orderer section")
 }
 
-func TestMissingConsortiumSection(t *testing.T) {
+func TestMissingConsortiumValue(t *testing.T) {
 	configTxDest := tmpDir + string(os.PathSeparator) + "configtx"
 
 	factory.InitFactories(nil)
 	config := genesisconfig.Load(genesisconfig.SampleSingleMSPChannelProfile)
 	config.Consortium = ""
 
-	assert.Error(t, doOutputChannelCreateTx(config, "foo", configTxDest), "Missing Consortium section in Application Profile definition")
+	assert.Error(t, doOutputChannelCreateTx(config, "foo", configTxDest), "Missing Consortium value in Application Profile definition")
 }
 
 func TestInspectConfigTx(t *testing.T) {