Strip sudo use if running as root on Linux/macOS

* Allows running under live macOS

scripts/wk/exe.py

@@ -3,6 +3,7 @@
 
 import json
 import logging
+import os
 import re
 import subprocess
 
@@ -77,6 +78,10 @@ def build_cmd_kwargs(cmd, minimized=False, pipe=True, shell=False, **kwargs):
     'shell': shell,
     }
 
+  # Strip sudo if appropriate
+  if cmd[0] == 'sudo' and os.name == 'posix' and os.geteuid() == 0:
+    cmd.pop(0)
+
   # Add additional kwargs if applicable
   for key in 'check cwd encoding errors stderr stdin stdout'.split():
     if key in kwargs: