[eslint] remove exception for one-var, fix violations

test/unit/specs/connection_pool.js

@@ -19,7 +19,11 @@ function listenerCount(emitter, event) {
 
 describe('Connection Pool', function () {
   describe('Adding/Removing/Syncing Connections', function () {
-    let pool, host, connection, host2, connection2;
+    let pool;
+    let host;
+    let connection;
+    let host2;
+    let connection2;
 
     beforeEach(function () {
       pool = new ConnectionPool({});
@@ -93,7 +97,9 @@ describe('Connection Pool', function () {
   });
 
   describe('Connection selection', function () {
-    let pool, host, host2;
+    let pool;
+    let host;
+    let host2;
 
     beforeEach(function () {
       pool = new ConnectionPool({});
@@ -211,7 +217,11 @@ describe('Connection Pool', function () {
   });
 
   describe('Connection state management', function () {
-    let pool, host, host2, connection, connection2;
+    let pool;
+    let host;
+    let host2;
+    let connection;
+    let connection2;
 
     beforeEach(function () {
       pool = new ConnectionPool({});

test/unit/specs/log.js

@@ -128,7 +128,8 @@ describe('Log class', function () {
   });
 
   describe('instance without one output listening to all events', function () {
-    let log, call;
+    let log;
+    let call;
     beforeEach(function () {
       call = void 0;
       log = new Log({

test/unit/specs/transport.js

@@ -817,7 +817,8 @@ describe('Transport Class', function () {
       ]);
 
       sinon.assert.calledOnce(trans.connectionPool.setHosts);
-      let host, hosts = trans.connectionPool.setHosts.firstCall.args[0];
+      let host;
+      const hosts = trans.connectionPool.setHosts.firstCall.args[0];
 
       expect(hosts).to.have.length(3);