Update ip example using context manager

Lukasa · Lukasa · commit a0440724be88 · 2015-06-04T13:26:18.000+01:00
diff --git a/examples/ip.hy b/examples/ip.hy
@@ -1,7 +1,7 @@
 (import hyper json)
 
 (defn http2bin [path]
-  (let [[conn (hyper.HTTPConnection "http2bin.org")]]
+  (with [[conn (hyper.HTTPConnection "http2bin.org")]]
     (.request conn "GET" path)
     (-> (.get_response conn) (.read) (json.loads))))
 
