diff -r defabf63e969 -r 8ff1ecfadcd1 mercurial/logcmdutil.py
--- a/mercurial/logcmdutil.py	Tue Oct 08 15:15:37 2019 -0700
+++ b/mercurial/logcmdutil.py	Tue Oct 08 15:06:18 2019 -0700
@@ -925,8 +925,7 @@
     for fname, (fromline, toline) in _parselinerangeopt(repo, opts):
         if fname not in wctx:
             raise error.Abort(
-                _(b'cannot follow file not in parent ' b'revision: "%s"')
-                % fname
+                _(b'cannot follow file not in parent revision: "%s"') % fname
             )
         fctx = wctx.filectx(fname)
         for fctx, linerange in dagop.blockancestors(fctx, fromline, toline):