fix test

tests/index.js

@@ -22,7 +22,7 @@ async function run() {
 	}).then(function(csr) {
 		//var csr = PEM.packBlock({ type: 'CERTIFICATE REQUEST', bytes: der });
 		console.log(csr);
-    if (!/^-----BEGIN CERTIFICATE REQUEST-----\s*MIIB/m.test(csr)) {
+    if (!/^-----BEGIN CERTIFICATE REQUEST-----\s*MII/m.test(csr)) {
       throw new Error("invalid CSR PEM");
     }
 	  console.info('PASS: (if it looks right)');