classes: tar 1.27 fixes

tar version 1.27 returns:

tar: --same-order option cannot be used with -c

with the commandlines we have been using. We can remove the -s option (which
is --same-order) to remove the error.

(From OE-Core master rev: 3d5a6d0a480a0fa98260a3b3ffc71b8d9e3e58af)

(From OE-Core rev: 5e3ec61bacd393d461498d9e090306cc7bd8fa63)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/package.bbclass

@@ -451,7 +451,7 @@ python perform_packagecopy () {
     # Start by package population by taking a copy of the installed
     # files to operate on
     # Preserve sparse files and hard links
-    cmd = 'tar -cf - -C %s -ps . | tar -xf - -C %s' % (dest, dvar)
+    cmd = 'tar -cf - -C %s -p . | tar -xf - -C %s' % (dest, dvar)
     retval = subprocess.call(cmd, shell=True)
     if retval:
         bb.fatal("file copy failed with exit code %s (cmd was %s)" % (retval, cmd))