return abi if passed as target

index.js

@@ -1,4 +1,7 @@
 function getAbi (target, runtime) {
+  if (typeof target === 'number' || target == Number(target)) {
+    return String(target)
+  }
   if (target) target = target.replace(/^v/, '')
 
   if (runtime === 'electron') {

test/index.js

@@ -60,3 +60,9 @@ test('getAbi supports leading v', function (t) {
   t.equal(getAbi('v7.2.0'), '51')
   t.end()
 })
+
+test('getAbi returns abi if passed as target', function (t) {
+  t.equal(getAbi(57), '57')
+  t.equal(getAbi('57'), '57')
+  t.end()
+})