Add 'EXIT STATUS' sections to man pages, per user request. Also do a couple of minor rewordings & bump the page revision dates.

man/man4/twconfig.4

@@ -35,7 +35,7 @@
 ..
 .nh
 .ad l
-.TH TWCONFIG 4 "1 July 2000"
+.TH TWCONFIG 4 "04 Jan 2018" "Open Source Tripwire 2.4"
 .SH NAME
 twconfig \- \fITripwire\fP configuration file reference
 .SH DESCRIPTION

man/man4/twpolicy.4

@@ -36,7 +36,7 @@
 .\"
 .nh
 .ad l
-.TH TWPOLICY 4 "1 July 2000"
+.TH TWPOLICY 4 "04 Jan 2018" "Open Source Tripwire 2.4"
 .SH NAME
 twpolicy \- \fITripwire\fP policy file reference
 .SH DESCRIPTION

man/man5/twfiles.5

@@ -25,7 +25,7 @@
 .\"
 .nh
 .ad l
-.TH TWFILES 5 "1 July 2000"
+.TH TWFILES 5 "04 Jan 2018" "Open Source Tripwire 2.4"
 .SH NAME
 twfiles \- overview of files used by \fITripwire\fR and file backup process
 .\"

man/man8/siggen.8

@@ -2,9 +2,9 @@
 .\" Do not move or remove previous line.
 .\" Used by some man commands to know that tbl should be used.
 .nh
-.TH SIGGEN 8 "19 Feb 2004"
+.TH SIGGEN 8 "04 Jan 2018" "Open Source Tripwire 2.4"
 .SH NAME
-siggen \- signature gathering routine for Tripwire
+siggen \- signature gathering utility for Tripwire
 .SH SYNOPSIS
 .B siggen
 [
@@ -54,6 +54,8 @@ Display Haval value, a 128-bit hash code.
 .TP
 .IR file1 " [ " "file2... " ]
 List of filesystem objects for which to display values.
+.SH EXIT STATUS
+\fBsiggen\fP exits 0 on success, 1 on error.
 .SH VERSION INFORMATION
 This man page describes
 .B siggen

man/man8/tripwire.8

@@ -36,9 +36,9 @@
 .\"
 .nh
 .ad l
-.TH TRIPWIRE 8 "1 July 2000"
+.TH TRIPWIRE 8 "04 Jan 2018" "Open Source Tripwire 2.4"
 .SH NAME
-tripwire \- a file integrity checker for \s-1UNIX\s0 systems
+tripwire \- a file integrity checker for \s-1UNIX-like\s0 systems
 .SH SYNOPSIS
 .B tripwire
 .RB "{ " "-m i" " | " "--init" " } "  
@@ -554,6 +554,19 @@ Mode selector.
 Use the specified email address.  This parameter must
 be supplied when test mode is used. Only one address
 may be specified.
+.SH EXIT STATUS
+.SS Integrity Checking Mode
+\fBtripwire\fP exits 0 if no changes are detected. Otherwise the exit value is a bit mask:
+.TP
+\fB1\fP At least one file or directory has been added.
+.TP
+\fB2\fP At least one file or directory has been modified.
+.TP
+\fB4\fP At least one file or directory has been modified.
+.TP
+\fB8\fP Error(s) occurred during the check.
+.SS All Other Modes
+\fBtripwire\fP exits 0 on success, 8 on error.
 .SH VERSION INFORMATION
 This man page describes
 .B tripwire

man/man8/twadmin.8

@@ -17,7 +17,7 @@
 .in \\n(.iu
 ..
 .ad l
-.TH TWADMIN 8 "1 July 2000"
+.TH TWADMIN 8 "04 Jan 2018" "Open Source Tripwire 2.4"
 .SH NAME
 twadmin \- Tripwire administrative and utility tool
 .SH SYNOPSIS
@@ -538,6 +538,8 @@ file.
 Specify passphrase used to decrypt the private key in the specified sitekey
 file.
 .\" *****************************************
+.SH EXIT STATUS
+\fBtwadmin\fP exits 0 on success, 1 on error.
 .SH VERSION INFORMATION
 This man page describes
 .B twadmin

man/man8/twintro.8

@@ -16,12 +16,12 @@
 .\"
 .nh
 .ad l
-.TH TWINTRO 8 "1 July 2000"
+.TH TWINTRO 8 "04 Jan 2018" "Open Source Tripwire 2.4"
 .SH NAME
 twintro \- introduction to \fITripwire\fP software
 .SH DESCRIPTION
 .PP
-\fITripwire 2.4\fP is a file integrity assessment product for Linux networks.  Rather than preventing an intruder or virus
+\fITripwire 2.4\fP is a file integrity assessment tool for UNIX-like systems.  Rather than preventing an intruder or virus
 from attacking system files, \fITripwire\fP detects intrusions when
 they do occur. By comparing system files and directories against a
 previously stored "baseline" database, \fITripwire\fP finds any

man/man8/twprint.8

@@ -2,7 +2,7 @@
 .\" Do not move or remove previous line.
 .\" Used by some man commands to know that tbl should be used.
 .ad l
-.TH TWPRINT 8 "1 July 2000"
+.TH TWPRINT 8 "04 Jan 2018" "Open Source Tripwire 2.4"
 .nh
 .SH NAME
 twprint \- Tripwire database and report printer
@@ -132,6 +132,8 @@ be printed. The format for a list of objects is:
 .if n .I "section: objname objname... section: objname..."
 .if t .br
 .if t .I "section: objectname objectname... section: objectname..."
+.SH EXIT STATUS
+\fBtwprint\fP exits 0 on success, 1 on error.
 .SH VERSION INFORMATION
 This man page describes
 .B twprint