* FAILED postinst: 1                                     
 * ERROR: net-misc/iputils-20171016_pre::core-kit failed (postinst phase):
 *   fcaps: wrong arg count                                                                                                                             
 * 
 * Call stack:                                     
 *     ebuild.sh, line   92:  Called pkg_postinst
 *   environment, line 2340:  Called fcaps_pkg_postinst
 *   environment, line 1331:  Called fcaps    
 *   environment, line 1245:  Called die
 * The specific snippet of code:                   
 *       [[ $# -lt 2 ]] && die "${FUNCNAME}: wrong arg count";