Fix bug where opts = { seqs: true }

Previously the code that took care of filtering out deleted items (empty
buffers) just checked whether the item was an empty buffer, but that
doesn't account for the case where `{ seqs: true }` and the value is
actually exposed in `{ value }`.

inject.js

@@ -69,15 +69,11 @@ module.exports = function (blocks, frame, codec, file, cache) {
       return pull(
         Looper(createStream(opts)),
         filter(item => {
-          let value
-
           if (opts && opts.seqs === false) {
-            value = item
+            return isNotDeleted(item)
           } else {
-            value = { item }
+            return isNotDeleted(item.value)
           }
-
-          return isNotDeleted(value)
         })
       )
     },

test/simple.js

@@ -87,6 +87,18 @@ tape('stream', function (t) {
 
 })
 
+tape('stream with options', function (t) {
+  pull(
+    db.stream({min: 0, seqs: true}),
+    pull.collect(function (err, ary) {
+      if(err) throw err
+
+      t.deepEqual(ary.map(item => String(item.value)), ['hello offset db'])
+      t.end()
+    })
+  )
+})
+
 tape('live', function (t) {
   t.deepEqual(live.map(String), ['hello world', 'hello offset db'])
   t.end()