fix an obvious error (wrong var name)

Author: keflavich

astroquery/alma/tests/test_alma_remote.py

@@ -66,7 +66,7 @@ def test_m83(self, temp_dir):
         alma = Alma()
         alma.cache_location = temp_dir
 
-        result_s = alma.query_object('M83')
+        m83_data = alma.query_object('M83')
         uids = np.unique(m83_data['Member ous id'])
         link_list = Alma.stage_data(uids)