diff -r e2ec36167151 -r 91aa9bba3dc9 mercurial/debugcommands.py
--- a/mercurial/debugcommands.py	Tue Jul 21 13:05:37 2020 -0700
+++ b/mercurial/debugcommands.py	Tue Jul 21 13:11:49 2020 -0700
@@ -1668,8 +1668,8 @@
     fm.data(re2=bool(util._re2))
 
     # templates
-    p = templater.templatepaths()
-    fm.write(b'templatedirs', b'checking templates (%s)...\n', b' '.join(p))
+    p = templater.templatedir()
+    fm.write(b'templatedirs', b'checking templates (%s)...\n', p)
     fm.condwrite(not p, b'', _(b" no template directories found\n"))
     if p:
         m = templater.templatepath(b"map-cmdline.default")