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_mp.c b/common/cmd_mp.c
index a0839c2fb..faa870013 100644
--- a/common/cmd_mp.c
+++ b/common/cmd_mp.c
@@ -78,7 +78,7 @@ cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	"     Default for r3 is <num> and r6 is 0\n" \
 	"\n" \
 	"     When cpu <num> is released r4 and r5 = 0.\n" \
-	"     r7 will contain the size of the initial mapped area\n"
+	"     r7 will contain the size of the initial mapped area"
 #endif
 
 U_BOOT_CMD(
@@ -86,8 +86,9 @@ U_BOOT_CMD(
 	"Multiprocessor CPU boot manipulation and release",
 	    "<num> reset                 - Reset cpu <num>\n"
 	"cpu <num> status                - Status of cpu <num>\n"
-	"cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]\n"
+	"cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
 #ifdef CPU_ARCH_HELP
+	"\n"
 	CPU_ARCH_HELP
 #endif
-	);
+);