ignore SIGPIPE

clients/fax500/main.c

clients/fax500/rp500.c

clients/finger/main.c

clients/gopher/go500.c

clients/gopher/go500gw.c

clients/mail500/main.c

clients/rcpt500/main.c

clients/tools/ldapdelete.c

clients/tools/ldapmodify.c

clients/tools/ldapmodrdn.c

clients/tools/ldappasswd.c

clients/tools/ldapsearch.c

clients/ud/main.c