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, 10 insertions, 7 deletions

diff --git a/common/cmd_ubifs.c b/common/cmd_ubifs.c
index 4767aa4..d9f60d5 100644
--- a/common/cmd_ubifs.c
+++ b/common/cmd_ubifs.c
@@ -119,14 +119,17 @@ int do_ubifs_load(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	ubifsmount, 2, 0, do_ubifs_mount,
 	"mount UBIFS volume",
-	"\n");
+	""
+);
 
 U_BOOT_CMD(ubifsls, 2, 0, do_ubifs_ls,
-	   "list files in a directory",
-	   "[directory]\n"
-	   "    - list files in a 'directory' (default '/')\n");
+	"list files in a directory",
+	"[directory]\n"
+	"    - list files in a 'directory' (default '/')"
+);
 
 U_BOOT_CMD(ubifsload, 4, 0, do_ubifs_load,
-	   "load file from an UBIFS filesystem",
-	   "<addr> <filename> [bytes]\n"
-	   "    - load file 'filename' to address 'addr'\n");
+	"load file from an UBIFS filesystem",
+	"<addr> <filename> [bytes]\n"
+	"    - load file 'filename' to address 'addr'"
+);