wrapfunction: use sysstr instead of bytes as argument in "sqlitestore"

This is as valid and simpler, it will help us to eventually get ride of
`safehasattr`.

hgext/sqlitestore.py

@@ -1332,9 +1332,9 b' def extsetup(ui):'
     extensions.wrapfunction(
         localrepo, b'newreporequirements', newreporequirements
     )
-    extensions.wrapfunction(localrepo, b'makefilestorage', makefilestorage)
-    extensions.wrapfunction(localrepo, b'makemain', makemain)
-    extensions.wrapfunction(verify.verifier, b'__init__', verifierinit)
+    extensions.wrapfunction(localrepo, 'makefilestorage', makefilestorage)
+    extensions.wrapfunction(localrepo, 'makemain', makemain)
+    extensions.wrapfunction(verify.verifier, '__init__', verifierinit)
 
 
 def reposetup(ui, repo):