[cleanup] Misc cleanup (#2173)

Authored by: fstirlitz, pukkandan

devscripts/bash-completion.py

@@ -1,9 +1,9 @@
 #!/usr/bin/env python3
 import os
 import sys
-from os.path import dirname as dirn
 
-sys.path.insert(0, dirn(dirn(os.path.abspath(__file__))))
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
 import yt_dlp
 
 BASH_COMPLETION_FILE = "completions/bash/yt-dlp"