fd81990 modcluster: Fix for cman_get_node() call

Authored and Committed by rmccabe 11 years ago
    modcluster: Fix for cman_get_node() call
    
    cman_get_node() is called in modclusterd without first zeroing out
    the node name in the cman_node_t structure passed in to it. This causes
    the call to fail. When corosync debugging is enabled, a debugging
    message caused by this failure is logged each time the call is made,
    which happens at least once per 5 seconds.
    
    This patch zeroes the structure before the call to cman_get_node()
    
    Patch from Christine Caulfield <ccaulfie@redhat.com>
    
    Resolves: rhbz#951470
    
    Signed-off-by: Ryan McCabe <rmccabe@redhat.com>