Plan 9 from Bell Labs’s /usr/web/sources/extra/changes/2005/1120

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Distributed under the MIT License.
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Update license for u9fs.
 [rsc] --rw-rw-r-- M 154268 rsc sys 735 Nov 20 09:53 sys/src/cmd/unix/u9fs/LICENSE

Fix mkfile.
 [jmk] --rw-rw-r-- M 154268 glenda sys 1799 Nov 20 11:15 sys/src/cmd/auth/mkfile
	/n/sourcesdump/2005/1120/plan9/sys/src/cmd/auth/mkfile:70,84 - 
	/n/sourcesdump/2005/1121/plan9/sys/src/cmd/auth/mkfile:70,75
	  	cd lib
	  	mk
	  
	- all:V:	$DIRS
	- 
	- $DIRS:V:
	- 	for (i in $DIRS) @{
	- 		echo mk $i
	- 		cd $i
	- 		mk all
	- 	}
	- 
	  install:V:	installdirs $BIN/status $BIN/enable $BIN/disable
	  
	  installdirs:V:

Remove unused code.
 [jmk] --rw-rw-r-- M 154268 glenda sys 5642 Nov 20 11:15 sys/src/cmd/ip/ping.c
	/n/sourcesdump/2005/1120/plan9/sys/src/cmd/ip/ping.c:168,174 - 
	/n/sourcesdump/2005/1121/plan9/sys/src/cmd/ip/ping.c:168,174
	  }
	  
	  void
	- rcvr(int fd, int msglen, int interval, int nmsg, int senderpid)
	+ rcvr(int fd, int msglen, int interval, int nmsg)
	  {
	  	uchar buf[64*1024+512];
	  	Icmp *ip;
	/n/sourcesdump/2005/1120/plan9/sys/src/cmd/ip/ping.c:231,238 - 
	/n/sourcesdump/2005/1121/plan9/sys/src/cmd/ip/ping.c:231,236
	  {
	  	int fd;
	  	int msglen, interval, nmsg;
	- 	int pid;
	- 	char err[ERRMAX];
	  
	  	nsec();		/* make sure time file is already open */
	  
	/n/sourcesdump/2005/1120/plan9/sys/src/cmd/ip/ping.c:286,297 - 
	/n/sourcesdump/2005/1121/plan9/sys/src/cmd/ip/ping.c:284,294
	  
	  	print("sending %d %d byte messages %d ms apart\n", nmsg, msglen, interval);
	  
	- 	pid = getpid();
	  	switch(rfork(RFPROC|RFMEM|RFFDG)){
	  	case -1:
	  		fprint(2, "%s: can't fork: %r\n", argv0);
	  	case 0:
	- 		rcvr(fd, msglen, interval, nmsg, pid);
	+ 		rcvr(fd, msglen, interval, nmsg);
	  		exits(0);
	  	default:
	  		sender(fd, msglen, interval, nmsg);


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