When executing the commands from an input file specified by the
"-i <file>" command line option, or when accepting input from a
file as a set of commands or as a set of command arguments using the
"<" redirection character, unconditionally cease the operation if
CTRL-c is entered.  Without the patch, depending upon the command
that was running when the SIGINT was received, the operation may
continue uninterruptibly until the file contents are consumed.
(anderson@redhat.com)