Fix handling of short with non-trivial equals

index.js

@@ -149,8 +149,8 @@ module.exports = function (args, opts) {
                     continue;
                 }
 
-                if (/[A-Za-z]/.test(letters[j]) && /=/.test(next)) {
-                    setArg(letters[j], next.split('=')[1], arg);
+                if (j === 0 && /[A-Za-z]/.test(letters[j]) && next[0] === '=') {
+                    setArg(letters[j], next.slice(1), arg);
                     broken = true;
                     break;
                 }

test/kv_short.js

@@ -14,3 +14,17 @@ test('multi short -k=v' , function (t) {
     var argv = parse([ '-a=whatever', '-b=robots' ]);
     t.deepEqual(argv, { a: 'whatever', b: 'robots', _: [] });
 });
+
+test('short with embedded equals -k=a=b' , function (t) {
+    t.plan(1);
+
+    var argv = parse([ '-k=a=b' ]);
+    t.deepEqual(argv, { k: 'a=b', _: [] });
+});
+
+test('short with later equals is not kv like -ab=c' , function (t) {
+    t.plan(1);
+
+    var argv = parse([ '-ab=c' ]);
+    t.deepEqual(argv, { a: true, b: '=c', _: [] });
+});