diff -r 15d3facfa40a -r aaad36b88298 mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Sun Jan 13 20:13:22 2019 -0500
+++ b/mercurial/cmdutil.py	Wed Feb 20 19:28:51 2019 -0500
@@ -179,8 +179,8 @@
 def newandmodified(chunks, originalchunks):
     newlyaddedandmodifiedfiles = set()
     for chunk in chunks:
-        if ishunk(chunk) and chunk.header.isnewfile() and chunk not in \
-            originalchunks:
+        if (ishunk(chunk) and chunk.header.isnewfile() and chunk not in
+            originalchunks):
             newlyaddedandmodifiedfiles.add(chunk.header.filename())
     return newlyaddedandmodifiedfiles
 
@@ -322,8 +322,8 @@
         if backupall:
             tobackup = changed
         else:
-            tobackup = [f for f in newfiles if f in modified or f in \
-                    newlyaddedandmodifiedfiles]
+            tobackup = [f for f in newfiles if f in modified or f in
+                        newlyaddedandmodifiedfiles]
         backups = {}
         if tobackup:
             backupdir = repo.vfs.join('record-backups')