correct documentation of install-hooks -t; simplify authors section

dnsupdate-install-hooks.8

@@ -4,41 +4,40 @@
 dnsupdate-install-hooks \- installs dnsupdate(8) into DHCP client hooks
 .SH SYNOPSIS
 .B dnsupdate-install-hooks
-[\-irqh]
+[\-hiqrt]
 .I platform
 .SH DESCRIPTION
 The
 .B dnsupdate-install-hooks
-utility manages
+utility is called by the packaging system to manage
 dnsupdate(8)'s
 hook into the local system's DHCP client.
 .PP
-The
-.B dnsupdate-install-hooks
-script is run automatically when the quest-dnsupdate package is 
-installed or uninstalled.
+This script can be run by an administrator, but normally it
+is run automatically by the packaging system when the dnsupdate package is 
+installed, upgraded or removed.
 .SS OPTIONS
 .TP
+\-h
+displays a help message
+.TP
 \-i
 installs the hook
 .TP
+\-q
+quiet mode: verbose messages are suppressed
+.TP
 \-r
 removes the hook
 .TP
-\-h
-displays a help message
-.TP
-\-q
-quiet mode: verbose messages are suppressed
+\-t
+tests to see if the hook appears to have already been installed
 .TP
 .I platform
 selects the DHCP client software.
 One of:
-linux
-aix
-hpux
-solaris
-macos.
+aix, hpux, solaris, macos, linux, dhclient, dhcpcd, or odhcpcd.
+Note that 'linux' auto-detects dhclient, dhcpcd or odhcpcd.
 .PP
 Note that running this script with the
 \-i

dnsupdate.8

@@ -159,4 +159,4 @@ vgptool(1),
 dnsupdate-install-hooks(8),
 .I \%http://rc.quest.com/topics/ddns/
 .SH AUTHORS
-David Leonard, Quest Software, Inc.
+Quest Software, Inc.