NSE: added output to docker-version.nse

scripts/docker-version.nse

@@ -8,7 +8,16 @@ description = [[Detects the Docker service version.]]
 ---
 -- @output
 -- PORT     STATE SERVICE VERSION
--- 2375/tcp open  docker  Docker 1.1.2
+-- 2375/tcp open  docker  Docker 1.11.2
+-- |   Version: 1.11.2
+-- |   BuildTime: 2016-06-01T21:47:50.269346868+00:00
+-- |   Arch: amd64
+-- |   KernelVersion: 3.13.0-91-generic
+-- |   Os: linux
+-- |   ApiVersion: 1.23
+-- |   GitCommit: b9f10c9
+-- |_  GoVersion: go1.5.4
+
 
 author = "Claudio Criscione"
 license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
@@ -31,7 +40,7 @@ action = function(host, port)
     port.version.version = response["Version"]
     port.version.product = "Docker"
     nmap.set_port_version(host, port)
-    return
+    return response
   end
   return
 end