cros-setup-chroot: do not clobber default settings

diff --git a/.bin/cros-setup-chroot b/.bin/cros-setup-chroot
index 5bbf43b26fc617697f8be0a9a5b8be5586e19020..0fc872b5a4e7e786a9d712fbffcfdc4f60d3fd4a 100755 (executable)
--- a/.bin/cros-setup-chroot
+++ b/.bin/cros-setup-chroot
@@ -25,7 +25,7 @@ sudo sh -c 'echo export LANG=en_US.UTF8 > '"${chr}/etc/profile.d/LANG.sh"
 sudo sh -c 'echo PATH+=:/sbin:/usr/sbin:/usr/local/sbin > '"${chr}/etc/profile.d/sbin.sh"
 sudo sh -c "cat > '${chr}/etc/make.conf.user'" <<-\EOF
        FEATURES="${FEATURES} noauto"
-       EMERGE_DEFAULT_OPTS="--color y"
+       EMERGE_DEFAULT_OPTS="${EMERGE_DEFAULT_OPTS} --color y"
        ACCEPT_LICENSE="${ACCEPT_LICENSE} Google-TOS"
 EOF
 sudo sh -c 'echo -g > '"${chr}/etc/ps1_append"