configure.ac: Link with libsystemd, not libsystemd-daemon
libsystemd-daemon was merged into libsystemd in 2014, for systemd-209.
Signed-off-by: Matt Turner mattst88@gmail.com
libsystemd-daemon was merged into libsystemd in 2014, for systemd-209.
Signed-off-by: Matt Turner mattst88@gmail.com