name typo fix

node.js

@@ -76,6 +76,8 @@ function create(deps) {
 
   RSA.exportPrivateKey = RSA._internal.exportPrivatePem;
   RSA.exportPublicKey = RSA._internal.exportPublicPem;
+  RSA.exportPrivatePem = RSA._internal.exportPrivatePem;
+  RSA.exportPublicPem = RSA._internal.exportPublicPem;
 
   RSA.exportPrivateJwk = RSA._internal.exportPrivateJwk;
   RSA.exportPublicJwk = RSA._internal.exportPublicJwk;