misc - test reliability improvement

Author: diego Dupin

benchmarks/benchs/bench_do.js

@@ -1,7 +1,7 @@
 const assert = require('assert');
 
 module.exports.title = 'do ? using callback';
-module.exports.displaySql = 'do ?';
+module.exports.displaySql = 'do ? using callback';
 module.exports.promise = false;
 module.exports.benchFct = function (conn, deferred) {
   conn.query('do ?', ['' + Math.floor(Math.random() * 50000000)], (err, res) => {

test/integration/test-ssl.js

@@ -157,7 +157,11 @@ describe('ssl', function () {
       conn.end();
       throw new Error('Must have thrown an exception !');
     } catch (err) {
-      assert(err.message.includes('self signed certificate'), err.message);
+      assert(
+        err.message.includes('self signed certificate') ||
+          err.message.includes('unable to get local issuer certificate'),
+        err.message
+      );
     }
   });