Modify usr-bin test

tests/venv/usr-bin/verify

@@ -1,6 +1,5 @@
 #!/usr/bin/env python
-# Verify that ~/local/bin is on the PATH
+# Verify that ~/.local/bin is on the PATH
 import os
 
-PATH = os.getenv("PATH")
-assert "/home/jovyan/local/bin" in PATH
+assert "$HOME/.local/bin" in os.getenv("PATH")