Minor CygWin setup script fixes.

tmcd/cygwinxp/GNUmakefile.in

@@ -62,7 +62,7 @@ bin-install:	dir-install
 	# These are found in the /share/windows directory.
 	$(INSTALL) -m 755 $(SRCDIR)/WSName.exe $(BINDIR)/WSName.exe
 	$(INSTALL) -m 755 $(SRCDIR)/addusers.exe $(BINDIR)/addusers.exe
-	$(INSTALL) -m 755 $(SRCDIR)/addusers.exe $(BINDIR)/usrtogrp.exe
+	$(INSTALL) -m 755 $(SRCDIR)/usrtogrp.exe $(BINDIR)/usrtogrp.exe
 	# These are used by tmcd/findif.
 	$(INSTALL) -m 755 $(SYSTEM32)/getmac.exe $(BINDIR)/getmac.exe
 	$(INSTALL) -m 755 $(WBEM)/framedyn.dll $(BINDIR)/framedyn.dll

tmcd/cygwinxp/rc.cygwinxp-user

@@ -9,9 +9,11 @@
 # with value: 
 #   C:\cygwin\bin\bash /usr/local/etc/emulab/rc/rc.cygwinxp-user
 
-PATH=/usr/local/etc/emulab:$PATH
+PATH=/usr/local/etc/emulab:/bin:$PATH
+export PATH
 
 # Root has a local home directory, and is handled by the SYSTEM sshd on port 22.
+# There is no need to do any of the following for root.
 user=`id -un`
 if [ $user = root ]; then
     exit 0

tmcd/cygwinxp/startsshd

@@ -46,7 +46,7 @@ chmod o-r /etc/ssh*key.user
 
 # Start sshd in the background, orphaned so it doesn't get SIGINT from here.
 # The pidfile is updated by sshd itself.
-# Don't use privilege separation, because it requires taking ownership of
+# Don't use privilege separation here, because it requires taking ownership of
 # /var/empty, which kills key exchange for the SYSTEM root sshd.
 echo "Starting new sshd daemon as $user."
 (CYGWIN="ntsec tty" /usr/sbin/sshd -p 2222 -o "UsePrivilegeSeparation no" \
@@ -54,6 +54,6 @@ echo "Starting new sshd daemon as $user."
 sleep 2
 
 # Remember this one separately from the SYSTEM sshd.
-chmod -f g+w $upidfile
+chmod -f g+w $upidfile >& /dev/null
 cp $pidfile $upidfile
 chmod -f g+w $upidfile