fix: handling of directory glob (#214)

## References
Fixes #212

Author: mohd-akram

lib/index.js

@@ -298,8 +298,9 @@ class PackWalker extends IgnoreWalker {
         // invert the rule because these are things we want to include
         if (file.startsWith('./')) {
           file = file.slice(1)
-        } else if (file.endsWith('/*')) {
-          file = file.slice(0, -1)
+        }
+        if (file.endsWith('/*')) {
+          file += '*'
         }
         const inverse = `!${file}`
         try {

test/package-json-directory-glob.js

@@ -24,6 +24,8 @@ t.test('package json directory glob', async (t) => {
     'folder/',
     'folder/*',
     'folder/**',
+    'folder/**/*',
+    './folder/*',
   ]
 
   for (const files of pkgFiles) {