When visiting. http://plan9.bell-labs.com/sources/plan9/sys/src/cmd/graph/
I get the following error: sed: Can't open /usr/web/plan9/sources.html --rw-rw-r-- glenda sys 13164 May 21 2006 graph.c --rw-rw-r-- glenda sys 2141 Dec 11 1999 iplot.h --rw- rw-r-- glenda sys 108 Dec 11 1999 mkfile --rw-rw-r-- glenda sys 321 Mar 19 2001 subr.c --rw-rw-r-- glenda sys 62 Dec 11 1999 whoami.c sed: Can't open /usr/web/plan9/sources.html
