chroot leaving mount points still... er... mounted. https://github.com/pkgcore/pychroot/issues/22

extra/pre-build.d/etc/locale.conf

@@ -0,0 +1,14 @@
+LANG=en_US.UTF-8
+LC_CTYPE="en_US.UTF-8"
+LC_NUMERIC="en_US.UTF-8"
+LC_TIME="en_US.UTF-8"
+LC_COLLATE="en_US.UTF-8"
+LC_MONETARY="en_US.UTF-8"
+LC_MESSAGES="en_US.UTF-8"
+LC_PAPER="en_US.UTF-8"
+LC_NAME="en_US.UTF-8"
+LC_ADDRESS="en_US.UTF-8"
+LC_TELEPHONE="en_US.UTF-8"
+LC_MEASUREMENT="en_US.UTF-8"
+LC_IDENTIFICATION="en_US.UTF-8"
+LC_ALL=