Merge pull request #11973 from ceph/wip-17898-ceph-disk-flake8

ceph-disk: fix flake8 errors

Reviewed-by: Dan Mick <dmick@redhat.com>

src/ceph-disk/ceph_disk/main.py

@@ -204,6 +204,7 @@ def is_dmcrypt(ptype, name):
                 return True
         return False
 
+
 DEFAULT_FS_TYPE = 'xfs'
 SYSFS = '/sys'
 
@@ -5141,6 +5142,7 @@ def main_catch(func, args):
 def run():
     main(sys.argv[1:])
 
+
 if __name__ == '__main__':
     main(sys.argv[1:])
     warned_about = {}