fix: detect from cwd by default

Author: dominykas

bin/detect-node-support

@@ -29,7 +29,7 @@ Options:
 `;
 };
 
-exports.main = async ({ _: [what], deps, deep, dev, json }) => {
+exports.main = async ({ _: [what], help, deps, deep, dev, json }) => {
 
     const enabledLogs = ['detect-node-support:warn:*', 'detect-node-support:error:*'];
 
@@ -39,11 +39,15 @@ exports.main = async ({ _: [what], deps, deep, dev, json }) => {
 
     Debug.enable(enabledLogs.join(','));
 
-    if (!what) {
+    if (help) {
         console.log(internals.help());
         return;
     }
 
+    if (!what) {
+        what = process.cwd();
+    }
+
     if (!deps && (deep || dev)) {
         console.log('--deep and --dev can only be used together with --deps\n');
         console.log(internals.help());