systemd: fix bash errors

[dougsland]

Just found these errors executing dualstack tests.

[dougsland]

error not related to the patch:

Compiling targeted qm module
qm.te:3:ERROR 'unknown class user_namespace' at token ';' on line 4689:
	allow qm_t self:user_namespace all_user_namespace_perms;
#line 3
/usr/bin/checkmodule:  error(s) encountered while parsing configuration
make[1]: *** [/usr/share/selinux/devel/include/Makefile:157: tmp/qm.mod] Error 1
make[1]: Leaving directory '/builddir/build/BUILD/qm-0.4.2/tmp'
make: *** [Makefile:32: qm.pp] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.sHFHwn (%build)

See: #84