py3: make sure we pass sysstr in sqlite3.connect()

Differential Revision: https://phab.mercurial-scm.org/D5174

hgext/sqlitestore.py

@@ -63,6 +63,7 b' from mercurial.thirdparty import ('
 from mercurial import (
     ancestor,
     dagop,
+    encoding,
     error,
     extensions,
     localrepo,
@@ -1020,7 +1021,7 b' class sqliterepository(localrepo.localre'
 def makedb(path):
     """Construct a database handle for a database at path."""
 
-    db = sqlite3.connect(path)
+    db = sqlite3.connect(encoding.strfromlocal(path))
     db.text_factory = bytes
 
     res = db.execute(r'PRAGMA user_version').fetchone()[0]