Ensure errors from initOracleClient() have the code attribut set properly

Author: sharadraju

lib/oracledb.js

@@ -680,10 +680,11 @@ function initOracleClient(arg1) {
     try {
       oracledbCLib.initOracleClient(options, impl, settings);
     } catch (err) {
-      if (err.message.match(/DPI-1047/)) {
-        err.message += "\n" + nodbUtil.getInstallHelp();
+      const newErr = errors.transformErr(err);
+      if (newErr.code === "DPI-1047") {
+        newErr.message += "\n" + nodbUtil.getInstallHelp();
       }
-      throw err;
+      throw newErr;
     }
     _initOracleClientArgs = arg1 || {};
   } else if (!util.isDeepStrictEqual(_initOracleClientArgs, options)) {