Remove Pod::Usage since podlators minimum perl is now v5.12 (#60)

* remove Pod::Usage since podlators v6 now requires perl v5.12

rra/podlators#35

* Remove META.json

* remove Pod::Usage from cpanfile

Author: briandfoy

META.json

@@ -105,7 +105,6 @@ my %WriteMakefile = (
 		'IO::Interactive'          => '0',
 		'JSON'                     => '0',
 		'PerlIO::gzip'             => '0',
-		'Pod::Usage'               => '1.69',
 		},
 
 	'META_MERGE' => {

Makefile.PL

@@ -8,7 +8,6 @@ requires 'Module::CPANfile';
 requires 'Module::CoreList', '5.20181020';
 requires 'Module::Extract::VERSION';
 requires 'PerlIO::gzip';
-requires 'Pod::Usage',       '1.69';
 requires 'version';
 
 on 'test' => sub {

cpanfile

@@ -7,7 +7,7 @@ use IO::Interactive qw(is_interactive);
 
 use CPAN::Audit;
 
-our $VERSION = "1.501";
+our $VERSION = "1.502";
 
 __PACKAGE__->run( @ARGV ) unless caller;
 
@@ -216,6 +216,208 @@ sub usage {
 	my( $class, $exit_code ) = @_;
 	no warnings qw(once);
 	Pod::Usage::pod2usage( -input => $FindBin::Bin . "/" . $FindBin::Script );
+	print <<'HERE';
+NAME
+    cpan-audit - Audit CPAN modules
+
+SYNOPSIS
+    cpan-audit [command] [options]
+
+    Commands:
+
+        module         [version range]    audit module with optional version range (all by default)
+        modules        [version range]    audit module list with optional version range (all by default)
+        dist|release   [version range]    audit distribution with optional version range (all by default)
+        deps           [directory]        audit dependencies from the directory (. by default)
+        installed                         audit all installed modules
+        show           [advisory id]      show information about specific advisory
+
+    Options:
+
+        --ascii               use ascii output
+        --fresh|f             check the database for freshness (CPAN::Audit::FreshnessCheck)
+        --help|h              show the help message and exit
+        --no-color            switch off colors
+        --no-corelist         ignore modules bundled with perl version
+        --perl                include perl advisories
+        --quiet               be quiet (overrules --verbose)
+        --verbose             be verbose (off if --quiet in effect)
+        --version             show the version and exit
+        --exit-zero           always exit with 0 even if advisories are reported
+        --exclude <str>       exclude/ignore the specified advisory/cve (multiple)
+        --exclude-file <file> read exclude/ignore patterns from file
+        --json                output JSON
+
+    Examples:
+
+        cpan-audit dist Catalyst-Runtime
+        cpan-audit dist Catalyst-Runtime 7.0
+        cpan-audit dist Catalyst-Runtime '>5.48'
+
+        cpan-audit module Catalyst 7.0
+
+        cpan-audit modules "Catalyst;7.0" "Mojolicious;>8.40,<9.20"
+
+        cpan-audit deps .
+        cpan-audit deps /path/to/distribution
+
+        cpan-audit installed
+        cpan-audit installed local/
+        cpan-audit installed local/ --exclude CVE-2011-4116
+        cpan-audit installed local/ --exclude CVE-2011-4116 --exclude CVE-2011-123
+        cpan-audit installed local/ --exclude-file ignored-cves.txt
+
+        cpan-audit installed --json
+
+        cpan-audit installed --json --exit-zero
+
+        cpan-audit show CPANSA-Mojolicious-2018-03
+
+DESCRIPTION
+    "cpan-audit" is a command line application that checks the modules or
+    distributions for known vulnerabilities. It is using its internal
+    database that is automatically generated from a hand-picked database
+    <https://github.com/briandfoy/cpan-security-advisory>.
+
+    "cpan-audit" does not connect to anything, that is why it is important
+    to keep it up to date. Every update of the internal database is released
+    as a new version. Ensure that you have the latest database by updating
+    CPAN::Audit frequently; the database can change daily. You can use
+    enable a warning for a possibly out-of-date database by adding
+    "--fresh", which warns if the database version is older than a month:
+
+            % cpan-audit --fresh ...
+            % cpan-audit -f ...
+
+            % env CPAN_AUDIT_FRESH_DAYS=7 cpan-audit -f ...
+
+  Finding dependencies
+    "cpan-audit" can automatically detect dependencies from the following
+    sources:
+
+    "Carton"
+        Parses cpanfile.snapshot file and checks the distribution versions.
+
+    cpanfile
+        Parses cpanfile taking into account the required versions.
+
+    It is assumed that if the required version of the module is less than a
+    version of a release with a known vulnerability fix, then the module is
+    considered affected.
+
+  JSON data
+    If you request JSON output, the data looks like
+
+        {
+          "meta" : {
+              ... meta information ...
+          "dists": {
+            "<distribution1>": {
+              ... distribution info ...
+            }
+          }
+          "errors" : [
+            ... list of errors - if any ...
+          ]
+        }
+
+   Meta information
+    The meta data contains information about the run of "cpan-audit".
+
+        {
+          "args": [
+            "Mojo::File",
+            "Mojo::UserAgent",
+            "LWP::UserAgent"
+          ],
+          "cpan_audit": {
+            "version": "20230601.002"
+          },
+          "total_advisories": 19,
+          "command": "modules"
+        }
+
+    These information are shown
+
+    *   cpan_audit
+
+        The version of "cpan_audit" that is used for the audit
+
+    *   command
+
+        The command of "cpan_audit" that was run
+
+    *   args
+
+        Arguments for the command
+
+    *   total_advisories
+
+        Number of found advisories
+
+   Distribution information
+    For each distribution where at least one advisory was found, the JSON
+    looks like:
+
+        "Dist-Name": {
+          "queried_modules": [
+            "Queried::Namespace"
+          ],
+          "version": "Any",
+          "advisories": [
+            {
+              ... advisory data as in the audit database ...
+            },
+              ... more advisories ...
+          ]
+        },
+
+    The advisory data is basically the data from the database. So this
+    depends on what is known for the given advisory.
+
+    The distribution information contains:
+
+    *   version
+
+        The version (range) that is checked for advisories. If there's no
+        version specified, all versions are checked and the version is
+        report as "Any".
+
+    *   queried_modules
+
+        The actual namespaces queried, either from the command line or
+        another source, such as a cpanfile.
+
+    *   advisories
+
+        A list of all vulnerabilities found for the version range
+
+  Exit values
+    In prior versions, "cpan-audit" exited with the number of advisories it
+    found. Starting with 1.001, if there are advisories found, "cpan-audit"
+    exits with 64 added to that number. The maximum number of reported
+    advisories is 62, since values over 126 are spoken for.
+
+    If the option "--exit-zero" is set "cpan-audit" exits always with a
+    normal exit code (0). This allows to use "cpan-audit" in build
+    environments together with bash exit mode activated ("set -e").
+
+    *   0 - no advisories found
+
+    *   2 - problem with program invocation, such as bad switches or values
+
+    *   64+n - advisories found. Subtract 64 to get the advisory count, up
+        to 62 advisories
+
+    *   255 - unspecified program error
+
+LICENSE
+    Copyright (C) Viacheslav Tykhanovskyi.
+
+    This library is free software; you can redistribute it and/or modify it
+    under the same terms as Perl itself.HERE
+HERE
+
 	exit( $exit_code );
 	}