gcc-cross.inc: Fix cross testing script

shift the cmdline argument after determining
there is atleast 1 argument to shift otherwise
it ends up in error when no argument is specified

(From OE-Core rev: 4cd306ab0c9404a31f38c7e5fb67fe32fdca3d4b)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-cross.inc

@@ -45,7 +45,6 @@ do_compile () {
 	# append execution part of the script
 cat >> ${B}/${TARGET_PREFIX}testgcc << STOP
 target="\$1"
-shift
 usage () {
 	echo "Usage:"
 	echo "\$0 user@target 'extra options to dejagnu'"
@@ -60,11 +59,13 @@ usage () {
     }
 if [ "x\$target" = "x" ]
 then
-	echo "Please specify the target machine and remote user in form of user@target"
+	echo "Please specify the target machine and remote user in form of user@target\n"
 	usage
 	exit 1;
 fi
 
+shift
+
 echo "\$target" | grep "@" 2>&1 > /dev/null
 if [ "x\$?" = "x0" ]
 then