diff --git a/build b/build
index c0efaaf..b37b1e7 100755
--- a/build
+++ b/build
@@ -123,8 +123,7 @@ fetch_trees()
 
 fail()
 {
-	tmp_cleanup || printf "WARNING: can't rm tmp files: %s\n" "$tmpdir" \
-	    1>&2
+	tmp_cleanup || printf "WARNING: can't rm tmpfiles: %s\n" "$tmpdir" 1>&2
 	err_ "${1}"
 }
 
diff --git a/config/u-boot/default/nuke.list b/config/u-boot/default/nuke.list
index 0381f52..50eb00b 100644
--- a/config/u-boot/default/nuke.list
+++ b/config/u-boot/default/nuke.list
@@ -1,4 +1,4 @@
-doc/
+doc
 Licenses/r8a779x_usb3.txt
 drivers/usb/host/xhci-rcar-r8a779x_usb3_v3.h
 arch/mips/mach-octeon/include/mach/cvmx-pki-cluster.h
diff --git a/include/git.sh b/include/git.sh
index 3ee27fc..46b6301 100755
--- a/include/git.sh
+++ b/include/git.sh
@@ -11,8 +11,7 @@ fetch_project_trees()
 	[ ! -d "src/$project/$project" ] && x_ mkdir -p "src/$project" \
 	    && fetch_project_repo "$project"
 	fetch_config
-	e "src/$project/$tree" d && return 0
-	prepare_new_tree
+	e "src/$project/$tree" d || prepare_new_tree; return 0
 }
 
 fetch_config()
diff --git a/script/roms b/script/roms
index 6466c0e..0d477b6 100755
--- a/script/roms
+++ b/script/roms
@@ -152,10 +152,9 @@ configure_target()
 
 	[ -n "$_scandisk" ] && grub_scan_disk="$_scandisk"
 	[ -z "$grub_scan_disk" ] && grub_scan_disk="nvme ahci ata"
-	_ata=""
-	_ahci=""
-	_nvme=""
-	_grub_scan_disk=""
+
+	eval "$(setvars "" _ata _ahci _nvme _grub_scan_disk)"
+
 	for _disk in $grub_scan_disk; do
 		[ "$_disk" != "nvme" ] && [ "$_disk" != "ahci" ] && \
 		    [ "$_disk" != "ata" ] && _grub_scan_disk="nvme ahci ata" \