patch 9.1.1486: documentation issues with Wayland

Problem:  documentation issues with Wayland
          (after v9.1.1485)
Solution: Tweak documentation style. Capitalize the first letter of
          Wayland (Hirohito Higashi)

related: #17619

Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/optionstr.c b/src/optionstr.c
index c72c5d2..dcbb30b 100644
--- a/src/optionstr.c
+++ b/src/optionstr.c
@@ -3650,7 +3650,7 @@
 did_set_wlseat(optset_T *args UNUSED)
 {
 #ifdef FEAT_WAYLAND_CLIPBOARD
-    // If there isn't any seat named 'wlseat', then let the wayland clipboard be
+    // If there isn't any seat named 'wlseat', then let the Wayland clipboard be
     // unavailable. Ignore errors returned.
     wayland_cb_reload();
 #endif