test: end tests properly

test/specs/plugins.js

@@ -92,4 +92,6 @@ test('normalize and load plugin', (t) => {
 
     tt.end()
   })
+
+  t.end()
 })

test/specs/post.js

@@ -65,4 +65,6 @@ test('full post run', (t) => {
       tt.end()
     })
   })
+
+  t.end()
 })

test/specs/verify.js

@@ -65,4 +65,6 @@ test('verify pkg, options and env', (t) => {
 
     tt.end()
   })
+
+  t.end()
 })