Command usage cleanup

Remove command name from all command "usage" fields and update
common/command.c to display "name - usage" instead of
just "usage". Also remove newlines from command usage fields.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/sandburst/common/ppc440gx_i2c.c b/board/sandburst/common/ppc440gx_i2c.c
index 9af6b8d..c1af70c 100644
--- a/board/sandburst/common/ppc440gx_i2c.c
+++ b/board/sandburst/common/ppc440gx_i2c.c
@@ -500,7 +500,7 @@
 
 U_BOOT_CMD(
 	iprobe1,	1,	1,	do_i2c1_probe,
-	"iprobe1  - probe to discover valid I2C chip addresses\n",
+	"probe to discover valid I2C chip addresses",
 	"\n    -discover valid I2C chip addresses\n"
 );
 
diff --git a/board/sandburst/karef/karef.c b/board/sandburst/karef/karef.c
index 8d97a9c..9b94af5 100644
--- a/board/sandburst/karef/karef.c
+++ b/board/sandburst/karef/karef.c
@@ -578,7 +578,7 @@
 }
 
 U_BOOT_CMD(kasetup, 1, 1, karefSetupVars,
-	   "kasetup - Set environment to factory defaults\n", NULL);
+	   "Set environment to factory defaults", NULL);
 
 U_BOOT_CMD(karecover, 1, 1, karefRecover,
-	   "karecover - Set environment to allow for fs recovery\n", NULL);
+	   "Set environment to allow for fs recovery", NULL);
diff --git a/board/sandburst/metrobox/metrobox.c b/board/sandburst/metrobox/metrobox.c
index 19302dc..ec4c451 100644
--- a/board/sandburst/metrobox/metrobox.c
+++ b/board/sandburst/metrobox/metrobox.c
@@ -544,7 +544,7 @@
 }
 
 U_BOOT_CMD(mbsetup, 1, 1, metroboxSetupVars,
-	   "mbsetup - Set environment to factory defaults\n", NULL);
+	   "Set environment to factory defaults", NULL);
 
 U_BOOT_CMD(mbrecover, 1, 1, metroboxRecover,
-	   "mbrecover - Set environment to allow for fs recovery\n", NULL);
+	   "Set environment to allow for fs recovery", NULL);