dma.8: Add spool to FILES

Readers expect to jump to the FILES section specified in mdoc(7) when
looking for files. Create this section and add the spool directory to it
so they can find it faster.

Author: concussious

dma.8

@@ -30,7 +30,7 @@
 .\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd February 13, 2014
+.Dd February 15, 2026
 .Dt DMA 8
 .Os
 .Sh NAME
@@ -347,6 +347,12 @@ config file setting or the
 .Fl f
 flag is used.
 .El
+.Sh FILES
+.Bl -tag -width "/var/spool/dma/"
+.It /var/spool/dma/
+Default deffered mail queue, see
+.Ic SPOOLDIR .
+.El
 .Sh SEE ALSO
 .Xr mailaddr 7 ,
 .Xr mailwrapper 8 ,