diff --git a/mercurial/upgrade.py b/mercurial/upgrade.py
--- a/mercurial/upgrade.py
+++ b/mercurial/upgrade.py
@@ -323,7 +323,7 @@ def upgrade_share_to_safe(
         ui.warn(_(b'repository upgraded to use share-safe mode\n'))
     except error.LockError as e:
         hint = _(
-            "see `hg help config.format.use-share-safe` for more information"
+            b"see `hg help config.format.use-share-safe` for more information"
         )
         if mismatch_config == b'upgrade-abort':
             raise error.Abort(
@@ -380,7 +380,7 @@ def downgrade_share_to_non_safe(
         ui.warn(_(b'repository downgraded to not use share-safe mode\n'))
     except error.LockError as e:
         hint = _(
-            "see `hg help config.format.use-share-safe` for more information"
+            b"see `hg help config.format.use-share-safe` for more information"
         )
         # If upgrade-abort is set, abort when upgrade fails, else let the
         # process continue as `upgrade-allow` is set
diff --git a/tests/hghave.py b/tests/hghave.py
--- a/tests/hghave.py
+++ b/tests/hghave.py
@@ -266,7 +266,10 @@ def has_executablebit():
 
 @check("suidbit", "setuid and setgid bit")
 def has_suidbit():
-    if getattr(os, "statvfs", None) is None or getattr(os, "ST_NOSUID") is None:
+    if (
+        getattr(os, "statvfs", None) is None
+        or getattr(os, "ST_NOSUID", None) is None
+    ):
         return False
     return bool(os.statvfs('.').f_flag & os.ST_NOSUID)