Correct duplicate word.

ceri · corecode · commit 08150f326bf2 · 2021-04-26T16:19:56.000+02:00
diff --git a/dma.8 b/dma.8
@@ -82,7 +82,7 @@ config file setting below.
 .Pp
 All other
 .Ar mode Ns
-s are are ignored.
+s are ignored.
 .It Fl D
 Don't run in the background.
 Useful for debugging.
