Support Python <3.10

Signed-off-by: Jean-Christophe Morin <[email protected]>

Author: JeanChristopheMorinPerso

setup.py

@@ -66,9 +66,7 @@ def find_files(pattern, path=None, root="rez"):
 # Note that this is not done on Windows because the Windows launcher
 # already does this.
 if not sys.flags.ignore_environment and platform.system() != 'Windows':
-    args = sys.orig_argv[:]
-    args[0] = sys.executable
-    args.insert(1, '-E')
+    args = [sys.executable, '-E'] + sys.argv
     if os.getenv('REZ_LAUNCHER_DEBUG'):
         print('Launching:', ' '.join(args))
     os.execvp(sys.executable, args)