diff --git a/build b/build
index 3194397f..033cb433 100755
--- a/build
+++ b/build
@@ -1,8 +1,6 @@
 #!/usr/bin/env sh
 # SPDX-License-Identifier: GPL-3.0-or-later
-# Copyright (c) 2014-2015,2020-2024 Leah Rowe <leah@libreboot.org>
-# Copyright (c) 2015 Patrick "P. J." McDermott <pj@pehjota.net>
-# Copyright (c) 2015-2016 Klemens Nanni <contact@autoboot.org>
+# Copyright (c) 2020-2024 Leah Rowe <leah@libreboot.org>
 # Copyright (c) 2022 Caleb La Grange <thonkpeasant@protonmail.com>
 
 set -u -e
diff --git a/script/trees b/script/trees
index 6bf00e18..1c38aa48 100755
--- a/script/trees
+++ b/script/trees
@@ -17,7 +17,7 @@ eval `setvars "" xarch srcdir premake cmakedir xlang mode makeargs elfdir cmd \
     defconfig postmake mkhelpercfg dry dest_dir mdir cleanargs gccver gccfull \
     gnatver gnatfull gccdir gnatdir`; badhash="n"
 
-main()
+tree()
 {
 	while getopts f:b:m:u:c:x:s:l:n:d: option; do
 		[ -n "$_f" ] && $err "only one flag is permitted"
@@ -302,7 +302,8 @@ handle_makefile()
 	    $dry x_ cp "$srcdir/$_copy" "$defconfig"
 
 	[ -e "$srcdir/.git" ] && [ "$project" = "u-boot" ] && \
-	    [ "$mode" = "distclean" ] && $dry x_ git -C "$srcdir" $cleanargs clean -fdx; :
+	    [ "$mode" = "distclean" ] && \
+		$dry x_ git -C "$srcdir" $cleanargs clean -fdx; :
 }
 
 run_make_command()
@@ -350,6 +351,6 @@ copy_elf()
 	done < "$listfile"; x_ make clean -C "$srcdir" $cleanargs
 }
 
-main "$@" || exit 0
+tree "$@" || exit 0
 . "$mkhelpercfg"
 $cmd
diff --git a/update b/update
new file mode 120000
index 00000000..c795b054
--- /dev/null
+++ b/update
@@ -0,0 +1 @@
+build
\ No newline at end of file
diff --git a/vendor b/vendor
new file mode 120000
index 00000000..c795b054
--- /dev/null
+++ b/vendor
@@ -0,0 +1 @@
+build
\ No newline at end of file