--- a/tests/bruterebase.py	Sat Oct 05 10:29:34 2019 -0400
+++ b/tests/bruterebase.py	Sun Oct 06 09:45:02 2019 -0400
@@ -23,6 +23,7 @@
 cmdtable = {}
 command = registrar.command(cmdtable)
 
+
 @command(b'debugbruterebase')
 def debugbruterebase(ui, repo, source, dest):
     """for every non-empty subset of source, run rebase -r subset -d dest
@@ -45,7 +46,7 @@
             subset = [rev for j, rev in enumerate(srevs) if i & (1 << j) != 0]
             spec = revsetlang.formatspec(b'%ld', subset)
             tr = repo.transaction(b'rebase')
-            tr._report = lambda x: 0 # hide "transaction abort"
+            tr._report = lambda x: 0  # hide "transaction abort"
 
             ui.pushbuffer()
             try:
@@ -70,5 +71,5 @@
             repo.vfs.tryunlink(b'rebasestate')
 
             subsetdesc = b''.join(getdesc(rev) for rev in subset)
-            ui.write((b'%s: %s\n') % (subsetdesc.rjust(len(srevs)), summary))
+            ui.write(b'%s: %s\n' % (subsetdesc.rjust(len(srevs)), summary))
             tr.abort()