1. Update for new -F option from r189992.

2. Sort the command line options to match how they are displayed
in usage()
3. Change references to cvs to the more generic "version control system"
and remove the .Xr for cvs
4. Consistently use ".Op Fl" to refer to command line options in the text.
5. Only use the apostrophe to indicate possession.
6. Add FREEBSD_ID (-F) to the list of variables in the example rc,
and change the DIFF_OPTIONS example to -Bb since -F now covers it.

usr.sbin/mergemaster/mergemaster.8

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 2, 2009
+.Dd March 18, 2009
 .Dt MERGEMASTER 8
 .Os
 .Sh NAME
@@ -32,14 +32,14 @@
 .Nd merge configuration files, et al during an upgrade
 .Sh SYNOPSIS
 .Nm
-.Op Fl achiprsvCPU
-.Op Fl A Ar Target architecture
-.Op Fl D Ar /destdir/path
+.Op Fl scrvahipFCPU
 .Op Fl m Ar /path/to/sources
 .Op Fl t Ar /path/to/temp/root
 .Op Fl d
 .Op Fl u Ar N
 .Op Fl w Ar N
+.Op Fl A Ar Target architecture
+.Op Fl D Ar /destdir/path
 .Sh DESCRIPTION
 The
 .Nm
@@ -82,15 +82,23 @@ merge by hand later.
 By default it creates the temporary root in
 .Pa /var/tmp/temproot
 and compares the
-.Xr cvs 1
-version $Id/$FreeBSD strings for files that have them, deleting
+Version Control System (VCS) Id strings ($FreeBSD$)
+for files that have them, deleting
 the temporary file if the strings match.
 If there is
-no $Id string, or if the strings are different it
+no Id string, or if the strings are different it
 compares the files themselves.
 You can
-also specify that the script ignore the $Id strings and
-compare every file.
+also specify that the script ignore the Id strings and
+compare every file with the
+.Op Fl s
+option.
+Using the
+.Op Fl F
+option
+.Nm
+will install the new file for you if they differ only by
+VCS strings.
 .Pp
 The merge menu option is designed to let you easily combine your
 customizations from the old version of a file into the new one.
@@ -117,11 +125,13 @@ After
 installing an updated version of this file you should
 probably run
 .Xr pwd_mkdb 8
-with the -p option to rebuild your password databases
+with the
+.Op Fl p
+option to rebuild your password databases
 and recreate
 .Pa /etc/passwd .
 .Pp
-The script uses the owner and group id's
+The script uses the owner and group ids
 that the files are created with by
 .Pa /usr/src/etc/Makefile ,
 and file permissions as specified by the umask.
@@ -158,9 +168,9 @@ and therefore can override both files.
 The options are as follows:
 .Bl -tag -width Fl
 .It Fl s
-Perform a strict comparison, diff'ing every pair of files.
+Perform a strict comparison, diffing every pair of files.
 This comparison is performed line by line,
-without regard to CVS $Id's.
+without regard to VCS Ids.
 .It Fl c
 Use context diffs instead of unified diffs.
 .It Fl r
@@ -189,8 +199,11 @@ directory exists, it creates a new one in a previously
 non-existent directory.
 This option unsets the verbose flag,
 but is compatible with all other options.
-Setting -a makes
--w superfluous.
+Setting
+.Op Fl a
+makes
+.Op Fl w
+superfluous.
 .It Fl h
 Display usage and help information.
 .It Fl i
@@ -202,6 +215,9 @@ Compares only files known to be essential to the success of
 {build|install}world,
 including
 .Pa /etc/make.conf .
+.It Fl F
+If the files differ only by VCS Id ($FreeBSD$)
+install the new file.
 .It Fl C
 After a standard
 .Nm
@@ -213,6 +229,8 @@ Preserve files that you replace in
 or another directory you specify in your
 .Nm
 rc file.
+.It Fl U
+Attempt to auto upgrade files that have not been user modified.
 .It Fl m Ar /path/to/sources
 Specify the path to the directory where you want to do the
 .Xr make 1 .
@@ -234,7 +252,9 @@ instead of the default
 .It Fl d
 Add the date and time to the name of the temporary
 root directory.
-If -t is specified, this option must
+If
+.Op Fl t
+is specified, this option must
 follow it if you want the date added too.
 .It Fl u Ar N
 Specify a numeric umask.
@@ -250,8 +270,6 @@ Specify an alternative
 architecture name.
 .It Fl D Ar /path
 Specify the destination directory for the installed files.
-.It Fl U
-Attempt to auto upgrade files that have not been user modified.
 .El
 .Sh ENVIRONMENT
 The
@@ -314,12 +332,15 @@ with all values commented out:
 # Specify the destination directory for the installed files
 #DESTDIR=
 #
-# Strict comparison bypasses the CVS $Id tests and compares every file
+# Strict comparison skips the VCS Id test and compares every file
 #STRICT=no
 #
 # Type of diff, such as unified, context, etc.
 #DIFF_FLAG='-u'
 #
+# Install the new file if it differs only by VCS Id ($FreeBSD$)
+#FREEBSD_ID=
+#
 # Verbose mode includes more details and additional checks
 #VERBOSE=
 #
@@ -345,7 +366,7 @@ with all values commented out:
 #IGNORE_FILES='/etc/motd /etc/printcap foo bar'
 #
 # Additional options for diff.  This will get unset when using -s.
-#DIFF_OPTIONS='-I$\&FreeBSD:.*[$]'	# Ignores CVS Id tags
+#DIFF_OPTIONS='-Bb'	# Ignore changes in whitespace
 #
 # Location to store the list of mtree values for AUTO_UPGRADE purposes
 #MTREEDB='/var/db'
@@ -382,7 +403,7 @@ Typically all you will need to do is type
 .Nm
 at the prompt and the script will do all the work for you.
 .Pp
-To use context diff's and have
+To use context diffs and have
 .Nm
 explain more things as it goes along, use:
 .Pp
@@ -401,7 +422,6 @@ comparison, use:
 .Pp
 .Dl # mergemaster -sw 110
 .Sh SEE ALSO
-.Xr cvs 1 ,
 .Xr diff 1 ,
 .Xr make 1 ,
 .Xr more 1 ,