Fixes pinojs#1167 (dedupe should write to all streams matching the ta…

…rget level)

lib/multistream.js

@@ -59,17 +59,13 @@ function multistream (streamsArray, opts) {
           stream.lastObj = lastObj
           stream.lastLogger = lastLogger
         }
-        if (!opts.dedupe) {
+        if (!opts.dedupe || dest.level === level) {
           stream.write(data)
         }
       } else {
         break
       }
     }
-
-    if (opts.dedupe && stream) {
-      stream.write(data)
-    }
   }
 
   function flushSync () {