[Mini-OS] Fix strrchr() when string doesn't contain the character. Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
[Mini-OS] Fix strrchr() when string doesn't contain the character.
Signed-off-by: Samuel Thibault <49a5ed162141aa1a2ad45c2f70540ac844521912@citrix.com>

rowhit/xen-minios,rowhit/xen-minios,rowhit/xen-minios