Unify socket closers. Don't put them all in one try-catch or some might remain.

lib/units/reaper/index.js

@@ -53,6 +53,8 @@ module.exports = function(options) {
     try {
       push.close()
     }
-    catch (err) {}
+    catch (err) {
+      // No-op
+    }
   })
 }