system/Config.in: fix custom skeleton help text

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

system/Config.in

@@ -185,7 +185,7 @@ config BR2_ROOTFS_SKELETON_CUSTOM_PATH
 	string "custom target skeleton path"
 	default "system/skeleton"
 	help
-	  Path custom target skeleton.
+	  Path to custom target skeleton.
 endif
 
 if BR2_ROOTFS_SKELETON_DEFAULT