-echo install /a/bin/log-quiet/log-once switch-mail-host btrbk-run mount-latest-subvol check-subvol-stale /usr/local/bin
-install /a/bin/log-quiet/log-once switch-mail-host btrbk-run mount-latest-subvol check-subvol-stale /usr/local/bin
+install /a/bin/log-quiet/log-once switch-mail-host btrbk-run mount-latest-subvol \
+ check-subvol-stale /usr/local/bin
+install /a/bin/errhandle/err /usr/local/lib