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, 4 insertions, 3 deletions

diff --git a/common/cmd_source.c b/common/cmd_source.c
index 43e1315..965b8b1 100644
--- a/common/cmd_source.c
+++ b/common/cmd_source.c
@@ -229,10 +229,11 @@ U_BOOT_CMD(
 	"run script from memory",
 	"[addr]\n"
 	"\t- run script starting at addr\n"
-	"\t- A valid image header must be present\n"
+	"\t- A valid image header must be present"
 #if defined(CONFIG_FIT)
+	"\n"
 	"For FIT format uImage addr must include subimage\n"
-	"unit name in the form of addr:<subimg_uname>\n"
+	"unit name in the form of addr:<subimg_uname>"
 #endif
 );
 
@@ -251,6 +252,6 @@ do_autoscr (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	autoscr, 2, 0,	do_autoscr,
 	"DEPRECATED - use \"source\" command instead",
-	"DEPRECATED - use \"source\" command instead\n"
+	""
 );
 #endif