Improve docs on boot parameter root_trim

diff --git a/doc/genkernel.8.txt b/doc/genkernel.8.txt
index d436330e64c2120fc8bac46e54c7d53bf0459815..703f8e124e4a537111e5a8092b108c056da76c7f 100644 (file)
--- a/doc/genkernel.8.txt
+++ b/doc/genkernel.8.txt
@@ -387,9 +387,9 @@ which the ramdisk scripts would recognize.
     root_key.   If unset while using root_key, it will automatically
     look for the device in every boot.
 
-*root_trim*=yes|no::
-    Allows you to enable TRIM support on root device. Only useful
-    for SSD setups. Have a look at http://en.wikipedia.org/wiki/TRIM
+*root_trim*=(yes|no)::
+    Enables TRIM support for a Luks-based root device.  Only useful
+    with SSD setups.  Have a look at 'http://en.wikipedia.org/wiki/TRIM'
     for more information.
 
 *swap_key*=<...>::