Merge pull request #2183 from gphat/cory-goexpvar-timeout

Add timeout for requests to get go expvar metrics.

checks.d/go_expvar.py

@@ -59,7 +59,7 @@ def __init__(self, name, init_config, agentConfig, instances=None):
         self._last_gc_count = defaultdict(int)
 
     def _get_data(self, url):
-        r = requests.get(url)
+        r = requests.get(url, timeout=10)
         r.raise_for_status()
         return r.json()