modprobe-small: add comment about aliased commands' help text

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/modutils/modprobe-small.c b/modutils/modprobe-small.c
index 5ea1be9..bd855f6 100644
--- a/modutils/modprobe-small.c
+++ b/modutils/modprobe-small.c
@@ -696,6 +696,10 @@
 
 //usage:#if ENABLE_MODPROBE_SMALL
 
+//// Note: currently, help system shows modprobe --help text for all aliased cmds
+//// (see APPLET_ODDNAME macro definition).
+//// All other help texts defined below are not used. FIXME?
+
 //usage:#define depmod_trivial_usage NOUSAGE_STR
 //usage:#define depmod_full_usage ""