allow arbitrary factotum flags like -D by
using debugfactotum as a specification rather
than a flag.

Notes:
Mon Feb 8 13:09:37 EST 2010 geoff
    done instead by adding a new variable, factotumopts,
    to avoid overloading debugfactotum and perhaps
    mucking up existing configurations.


Reference: /n/sources/patch/sorry/debugfactotum
Date: Sun Jan 17 00:34:22 CET 2010
Signed-off-by: quanstro@quanstro.net
Reviewed-by: geoff

--- /sys/src/9/boot/bootauth.c	Sun Jan 17 00:33:23 2010
+++ /sys/src/9/boot/bootauth.c	Sun Jan 17 00:33:22 2010
@@ -10,7 +10,7 @@
 void
 authentication(int cpuflag)
 {
-	char *argv[16], **av;
+	char *argv[16], **av, *s;
 	int ac;
 
 	if(access("/boot/factotum", AEXEC) < 0){
@@ -22,10 +22,8 @@
 	ac = 0;
 	av = argv;
 	av[ac++] = "factotum";
-	if(getenv("debugfactotum"))
-		av[ac++] = "-p";
-//	av[ac++] = "-d";		/* debug traces */
-//	av[ac++] = "-D";		/* 9p messages */
+	if(s = getenv("debugfactotum"))
+		av[ac++] = s;
 	if(cpuflag)
 		av[ac++] = "-S";
 	else
--- /sys/man/8/plan9.ini	Sun Jan 17 00:33:31 2010
+++ /sys/man/8/plan9.ini	Sun Jan 17 00:33:29 2010
@@ -623,8 +623,9 @@
 Causes
 .IR boot (8)
 to start factotum with the
-.B -p
-flag, so that it can be debugged.
+given flags, typically
+.BR -p ,
+so that it can be debugged.
 .SS \fLventi=value\fP
 When booting from a local fossil server backed by a local
 or remote venti server,