Some flashrom documentation fixes, and removal of duplicated info

Corresponding to flashrom svn r271 and coreboot v2 svn r3385.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/flashrom.8 b/flashrom.8
index 21e9036..b62ad9e 100644
--- a/flashrom.8
+++ b/flashrom.8
@@ -1,4 +1,4 @@
-.TH FLASHROM 8 "January 18, 2008"
+.TH FLASHROM 8 "June 22, 2008"
 .SH NAME
 flashrom \- a universal BIOS/ROM/flash programming utility
 .SH SYNOPSIS
@@ -43,8 +43,8 @@
 .B "\-m, \-\-mainboard" <[vendor:]part>
 Override mainboard settings. This option is needed for some mainboards,
 see the
-.B flashrom
-README for a list. The vendor is not required when the board name is unique.
+.B "flashrom \-\-list\-supported"
+output for a list. The vendor is not required when the board name is unique.
 .TP
 .B "\-f, \-\-force"
 Force write without checking whether the ROM image file is really meant