Fixed an error in the compositor script (used "box size" instead of
"box values", where the former requires that the box be present
beforehand, which it's not).  Changed /bin/env to the more common
/usr/bin/env in all the python scripts.

scripts/compositor.py

diff --git a/scripts/compositor.py b/scripts/compositor.py
index 304d1dd..57bf3d4 100755
--- a/scripts/compositor.py
+++ b/scripts/compositor.py
@@ -1,4 +1,4 @@
-#!/bin/env python3
+#!/usr/bin/env python3
 # SPDX-FileCopyrightText: 2020 Efabless Corporation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -123,7 +123,7 @@
 
         # Create a new project top level and place the fill cell.
         print('load ' + project_with_id + ' -quiet', file=ofile)
-        print('box size 0 0', file=ofile)	
+        print('box values 0 0 0 0', file=ofile)	
         print('box position 6um 6um', file=ofile)	
         print('getcell ' + project + ' child 0 0', file=ofile)
         print('getcell ' + project_with_id + '_fill_pattern child 0 0', file=ofile)

scripts/generate_fill.py

diff --git a/scripts/generate_fill.py b/scripts/generate_fill.py
index a292e8b..2b07191 100755
--- a/scripts/generate_fill.py
+++ b/scripts/generate_fill.py
@@ -1,4 +1,4 @@
-#!/bin/env python3
+#!/usr/bin/env python3
 # SPDX-FileCopyrightText: 2020 Efabless Corporation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

scripts/set_user_id.py

diff --git a/scripts/set_user_id.py b/scripts/set_user_id.py
index 9c324a5..8633ccb 100755
--- a/scripts/set_user_id.py
+++ b/scripts/set_user_id.py
@@ -1,4 +1,4 @@
-#!/bin/env python3
+#!/usr/bin/env python3
 # SPDX-FileCopyrightText: 2020 Efabless Corporation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");