Close the hddtemp socket in the finally block

This way we avoid leaving sockets open which can trigger a
ResourceWarning in some cases.

glances/plugins/glances_hddtemp.py

@@ -130,12 +130,13 @@ class GlancesGrabHDDTemp(object):
             sck = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
             sck.connect((self.host, self.port))
             data = sck.recv(4096)
-            sck.close()
         except socket.error as e:
             logger.warning("Can not connect to an HDDtemp server ({0}:{1} => {2})".format(self.host, self.port, e))
             logger.debug("Disable the HDDtemp module. Use the --disable-hddtemp to hide the previous message.")
             self.args.disable_hddtemp = True
             data = ""
+        finally:
+            sck.close()
 
         return data