diff -r 22e74b5aa59d -r 83d090ebec0c mercurial/repository.py
--- a/mercurial/repository.py	Wed Aug 07 20:11:12 2019 +0200
+++ b/mercurial/repository.py	Wed Aug 07 20:11:22 2019 +0200
@@ -1202,7 +1202,7 @@
     def rawsize(rev):
         """Obtain the size of tracked data.
 
-        Is equivalent to ``len(m.revision(node, raw=True))``.
+        Is equivalent to ``len(m.rawdata(node))``.
 
         TODO this method is only used by upgrade code and may be removed.
         """