src/tools/cephfs-top: fix flake8 line too long error

Fixes: https://tracker.ceph.com/issues/50005
Signed-off-by: Varsha Rao <varao@redhat.com>

diff --git a/src/tools/cephfs/top/cephfs-top b/src/tools/cephfs/top/cephfs-top
index a73fa14ed1e7a3e805e82caaa08e9bb46d505dc5..1f950bc608342058327236c53008480a5723edfd 100755 (executable)
--- a/src/tools/cephfs/top/cephfs-top
+++ b/src/tools/cephfs/top/cephfs-top
@@ -140,7 +140,8 @@ class FSTop(object):
             raise FSTopException('perf stats version mismatch!')
         missing = [m for m in stats_json["global_counters"] if m.upper() not in MGR_STATS_COUNTERS]
         if missing:
-            raise FSTopException(f'Cannot handle unknown metrics from \'ceph fs perf stats\': {missing}')
+            raise FSTopException('Cannot handle unknown metrics from \'ceph fs perf stats\': '
+                                 f'{missing}')
 
     def setup_curses(self):
         self.stdscr = curses.initscr()