fix: coerce key gen size to number in CLI

src/cli/commands/key/gen.js

@@ -16,7 +16,8 @@ module.exports = {
     size: {
       alias: 's',
       describe: 'size of the key to generate.',
-      default: '2048'
+      default: 2048,
+      type: 'number'
     }
   },
 

src/http/api/resources/key.js

@@ -64,7 +64,7 @@ exports.gen = (request, reply) => {
   const ipfs = request.server.app.ipfs
   const name = request.query.arg
   const type = request.query.type
-  const size = request.query.size
+  const size = parseInt(request.query.size)
   ipfs._keychain.createKey(name, type, size, (err, key) => {
     if (err) {
       return applyError(reply, err)