script/carry.sh: send error to stderr

Send the errors to stderr, otherwise they end up being
written to the file the script was redirecting to in the
Makefile

Also, use EOF block to make it easier to redirect

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Anup Patel <anup@brainfault.org>

scripts/carray.sh

@@ -2,12 +2,14 @@
 
 function usage()
 {
-	echo "Usage:"
-	echo " $0 [options]"
-	echo "Options:"
-	echo "     -h                   Display help or usage"
-	echo "     -i <input_config>    Input config file"
-	echo "     -l <variable_list>   List of variables in the array (Optional)"
+	cat <<EOF >&2
+Usage:  $0 [options]
+
+Options:
+     -h                   Display help or usage
+     -i <input_config>    Input config file
+     -l <variable_list>   List of variables in the array (Optional)
+EOF
 	exit 1;
 }