Merge tag 'upstream/5.4.2'

Upstream version 5.4.2

1 files changed, 4 insertions, 4 deletions

diff --git a/nikola/plugins/compile_html.py b/nikola/plugins/compile_html.py
index 850a3e5..6c1c381 100644
--- a/nikola/plugins/compile_html.py
+++ b/nikola/plugins/compile_html.py
@@ -51,10 +51,10 @@ class CompileHtml(PageCompiler):
         with codecs.open(path, "wb+", "utf8") as fd:
             if onefile:
                 fd.write('<!-- \n')
-                fd.write('.. title: %s\n' % title)
-                fd.write('.. slug: %s\n' % slug)
-                fd.write('.. date: %s\n' % date)
-                fd.write('.. tags: %s\n' % tags)
+                fd.write('.. title: {0}\n'.format(title))
+                fd.write('.. slug: {0}\n'.format(slug))
+                fd.write('.. date: {0}\n'.format(date))
+                fd.write('.. tags: {0}\n'.format(tags))
                 fd.write('.. link: \n')
                 fd.write('.. description: \n')
                 fd.write('-->\n\n')