General help message cleanup

Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.

Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.

This patch cleans this up - for example:

Before:
	=> help dtt
	dtt - Digital Thermometer and Thermostat

	Usage:
	dtt         - Read temperature from digital thermometer and thermostat.

After:
	=> help dtt
	dtt - Read temperature from Digital Thermometer and Thermostat

	Usage:
	dtt

Signed-off-by: Wolfgang Denk <wd@denx.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/board/amcc/katmai/cmd_katmai.c b/board/amcc/katmai/cmd_katmai.c
index 2c2849b..335d30c 100644
--- a/board/amcc/katmai/cmd_katmai.c
+++ b/board/amcc/katmai/cmd_katmai.c
@@ -214,5 +214,5 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	bootstrap,	3,	1,	do_bootstrap,
 	"program the serial device strap",
-	"wrclk [prom0|prom1] - program the serial device strap\n"
-	);
+	"wrclk [prom0|prom1] - program the serial device strap"
+);