diff -Naur ceph-10.2.10-orig/man/conf.py ceph-10.2.10/man/conf.py
--- ceph-10.2.10-orig/man/conf.py	2017-10-04 16:19:25.000000000 +0200
+++ ceph-10.2.10/man/conf.py	2019-08-11 12:21:34.664177573 +0200
@@ -9,7 +9,7 @@
 
 
 def _get_description(fname, base):
-    with file(fname) as f:
+    with open(fname) as f:
         one = None
         while True:
             line = f.readline().rstrip('\n')