coroipcc.h (coroipcc_msg_send_reply_receive): Make res_len size_t.

• include/corosync/coroipcc.h (coroipcc_msg_send_reply_receive):

change type of res_len parameter.

• lib/coroipcc.c (coroipcc_reply_receive): Likewise.

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2045 fd59a12c-fef9-0310-b244-a6a79926bd2f