docs:uncomment Node.js cursor.close() (#11422)

docs-examples/node/nativeexample/influxdb_line_example.js

@@ -29,6 +29,6 @@ try {
   createDatabase();
   insertData();
 } finally {
-  // cursor.close(); // 此处抛异常
+  cursor.close(); 
   conn.close();
 }

docs-examples/node/nativeexample/insert_example.js

@@ -17,7 +17,7 @@ power.d1003 USING power.meters TAGS(Beijing.Haidian, 2) VALUES ('2018-10-03 14:3
 power.d1004 USING power.meters TAGS(Beijing.Haidian, 3) VALUES ('2018-10-03 14:38:05.000', 10.80000, 223, 0.29000) ('2018-10-03 14:38:06.500', 11.50000, 221, 0.35000)`;
   cursor.execute(sql);
 } finally {
-  // cursor.close();
+  cursor.close();
   conn.close();
 }
 

docs-examples/node/nativeexample/multi_bind_example.js

@@ -48,6 +48,6 @@ try {
   prepareSTable();
   insertData();
 } finally {
-  // cursor.close(); // bug here
+  cursor.close();
   conn.close();
 }

docs-examples/node/nativeexample/opentsdb_json_example.js

@@ -50,6 +50,6 @@ try {
   createDatabase();
   insertData();
 } finally {
-  // cursor.close(); // 此处抛异常
+  cursor.close(); 
   conn.close();
 }

docs-examples/node/nativeexample/opentsdb_telnet_example.js

@@ -33,6 +33,6 @@ try {
   createDatabase();
   insertData();
 } finally {
-  // cursor.close(); // 此处抛异常
+  cursor.close();
   conn.close();
 }

docs-examples/node/nativeexample/param_bind_example.js

@@ -52,6 +52,6 @@ try {
   prepareSTable();
   insertData();
 } finally {
-  // cursor.close(); // bug here, jira: 14505
+  cursor.close();
   conn.close();
 }