expect(1): fix source path
 [rsc] --rw-rw-r-- M 303009 presotto sys 3018 Mar  9 09:15 sys/man/1/expect
	/n/sourcesdump/2006/0309/plan9/sys/man/1/expect:101,107 - 
	/n/sourcesdump/2006/0310/plan9/sys/man/1/expect:101,107
	  .B /rc/bin/ipconf/*
	  example dialer scripts for ppp
	  .SH SOURCE
	- .B /sys/src/dial/*.c
	+ .B /sys/src/cmd/dial/*.c
	  .SH SEE ALSO
	  .IR ppp (8),
	  .IR telco (4)