xen-livepatch: Remove the 'test' part

As it has evolved a bit and is more of a test tool.

Reviewed-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reported-by: Bhavesh Davda <bhavesh.davda@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

tools/misc/xen-livepatch.c

@@ -20,7 +20,7 @@ static xc_interface *xch;
 void show_help(void)
 {
     fprintf(stderr,
-            "xen-livepatch: live patching test tool\n"
+            "xen-livepatch: live patching tool\n"
             "Usage: xen-livepatch <command> [args]\n"
             " <name> An unique name of payload. Up to %d characters.\n"
             "Commands:\n"