Update execute.js

Author: swftvsn

lib/commands/execute.js

@@ -50,6 +50,12 @@ Execute.prototype.start = function(packet, connection) {
     this.parameters,
     connection.config.charsetNumber
   );
+  //For reasons why this try-catch is here, please see 
+  // https://github.com/sidorares/node-mysql2/pull/689 
+  //For additional discussion, see 
+  // 1. https://github.com/sidorares/node-mysql2/issues/493
+  // 2. https://github.com/sidorares/node-mysql2/issues/187
+  // 3. https://github.com/sidorares/node-mysql2/issues/480
   try {
     connection.writePacket(executePacket.toPacket(1));
   } catch (error) {