Sync man page and usage output.

Signed-off-by: Steffen Pankratz <kratz00@gmx.de>

Author: kratz00

man/unshield.1

@@ -1,8 +1,8 @@
-.TH UNSHIELD "1" "July 2004" "The SynCE project" "http://www.synce.org"
+.TH UNSHIELD "1" "November 2023" "The Unshield project" "https://github.com/twogood/unshield"
 .SH NAME
 unshield \- extract CAB files from an InstallShield installer archive
 .SH SYNOPSIS
-unshield [\-c COMPONENT] [\-d DIRECTORY] [\-D LEVEL] [\-g GROUP] [\-h] [\-i VERSION] [\-j] [\-L] [\-n] [\-o] [\-O] [\-r] [\-v] [\-V] c|g|l|t|x CABFILE
+unshield [\-c COMPONENT] [\-d DIRECTORY] [\-D LEVEL] [\-g GROUP] [\-h] [\-i VERSION] [\-e ENCODING] [\-j] [\-L] [\-O] [\-r] [\-R] [\-V] c|g|l|t|x CABFILE [FILENAME...]
 .SH DESCRIPTION
 Unshield extracts CAB files from InstallShield installers, used to 
 install software on Microsoft Windows based machines.
@@ -28,35 +28,29 @@ Only list/extract this file group
 Show help message
 .TP
 \fB\-i\fR VERSION
-Force InstallShield version number (don't autodetect)\n
+Force InstallShield version number (don't autodetect)
 .br
 Use this option if you have a very old archive (generated with InstallShield <= 4) and / or the automatic detection fails
 .TP
+\fB\-e\fR ENCODING
+Convert filename character encoding to local codepage from ENCODING (implicitly sets -R)
+.TP
 \fB\-j\fR
 Junk paths (do not make directories)
 .TP
 \fB\-L\fR
 Make file and directory names lowercase
 .TP
-\fB\-n\fR
-Never overwrite files
-.TP
-\fB\-o\fR
-Always overwrite files
-.TP
 \fB\-O\fR
 Use old compression
 .TP
 \fB\-r\fR
 Save raw data (do not decompress)
 .TP
 \fB\-R\fR
-Don't do any conversion to file and directory names when extracting.
+Don't do any conversion to file and directory names when extracting
 .TP
-\fB\-v\fR
-Be verbose
-.TP
-\fB\-V\fR
+\fB\-V\fR, \fB\-\-version\fR
 Print version information
 .SS "Commands:"
 .TP
@@ -74,10 +68,13 @@ Test files
 .TP
 x
 Extract files
-.SS "Other:"
+.SS Other:
 .TP
 CABFILE
-The InstallShield installer file to act upon
-.SH "AUTHOR"
+The file to list or extract contents of
+.TP
+FILENAME
+Optionally specify names of specific files to extract (wildcards are supported)
+.SH AUTHOR
 This manual page was adapted by Mark Ellis <mark@mpellis.org.uk>, from
 the skeleton generated by help2man

src/unshield.c

@@ -172,7 +172,7 @@ static void show_usage(const char* name)
   fprintf(stderr,
       "Syntax:\n"
       "\n"
-      "\t%s [-c COMPONENT] [-d DIRECTORY] [-D LEVEL] [-g GROUP] [-i VERSION] [-e ENCODING] [-GhlOrV] c|g|l|t|x CABFILE [FILENAME...]\n"
+      "\t%s [-c COMPONENT] [-d DIRECTORY] [-D LEVEL] [-g GROUP] [-h] [-i VERSION] [-e ENCODING] [-j] [-L] [-O] [-r] [-R] [-V] c|g|l|t|x CABFILE [FILENAME...]\n"
       "\n"
       "Options:\n"
       "\t-c COMPONENT  Only list/extract this component\n"
@@ -190,7 +190,7 @@ static void show_usage(const char* name)
       "\t-L            Make file and directory names lowercase\n"
       "\t-O            Use old compression\n"
       "\t-r            Save raw data (do not decompress)\n"
-      "\t-R            Don't do any conversion to file and directory names when extracting.\n"
+      "\t-R            Don't do any conversion to file and directory names when extracting\n"
       "\t-V --version  Print copyright and version information\n"
       "\n"
       "Commands:\n"
@@ -278,7 +278,7 @@ static bool handle_parameters(
         break;
 
       case 'V':
-        printf("Unshield version " VERSION ". MIT License. (C) 2003-2022 David Eriksson.\n");
+        printf("Unshield version " VERSION ". MIT License. (C) 2003-2023 David Eriksson.\n");
         exit(0);
         break;