Bug#558214: Please provide --help option for lintian-info

[gregor herrmann <gregoa@debian.org>]

Package: lintian
Version: 2.2.18
Severity: wishlist
Tags: patch

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The other day I typed `lintian-info --help' because I couldn't
remember the syntax for getting tag descriptions, and found out that
- --help doesn't exist. The manpage solved my question but maybe a
- --help option would be helpful for others too.

Find attached a quick patch which might server as a starting point
for help output.

Cheers,
gregor

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diff --git a/frontend/lintian-info b/frontend/lintian-info
index d8ef6c8..051934f 100755
--- a/frontend/lintian-info
+++ b/frontend/lintian-info
@@ -41,11 +41,26 @@ use Text_utils;
 
 my %already_displayed = ();
 
-my ($annotate, $tags);
+my ($annotate, $tags, $help);
 Getopt::Long::config('bundling', 'no_getopt_compat', 'no_auto_abbrev');
-GetOptions('annotate|a' => \$annotate, 'tags|t' => \$tags)
+GetOptions('annotate|a' => \$annotate, 'tags|t' => \$tags, 'help|h' => \$help)
     or die("error parsing options\n");
 
+# help
+if ($help) {
+    print <<"EOT";
+Usage: lintian-info [log-file...] ...
+       lintian-info --tags tag ...
+
+Options:
+    -a, --annotate    display verbose information about provided Lintian overrides
+    -t, --tags        display tag descriptions
+EOT
+
+    exit 0;
+}
+
+
 # If tag mode was specified, read the arguments as tags and display the
 # descriptions for each one.  (We don't currently display the severity,
 # although that would be nice.)