tweak wording to make it clearer where the mentioned -u option applies
diff --git a/got/got.1 b/got/got.1
index a9d816d..a9f60f5 100644
--- a/got/got.1
+++ b/got/got.1
@@ -1300,9 +1300,9 @@ or by
.Xr diff 1
and
.Xr cvs 1
-diff when invoked with the
+diff when invoked with their
.Fl u
-option.
+options.
If no
.Ar patchfile
argument is provided, read unified diff data from standard input instead.