Bug#688481: [copyright-format] Clarify that trailing slashes in directory names are invalid.

[Nicolas Boulenguez <nicolas@debian.org>]

Source: debian-policy
Followup-For: Bug #688481
Control: tags -1 + patch

Hello.

This suggestion has been delayed for 5 years because it seemed wrong
to change copyright-format without bumping its version.

However, according to the debian-policy history, more intrusive
wording changes have been applied meanwhile.

Please consider again the attached diff.

Thanks.

--- a/copyright-format-1.0.xml
+++ b/copyright-format-1.0.xml
@@ -659,6 +659,17 @@
         Exclusions are only supported by adding <varname>Files</varname>
         paragraphs to override the previous match.
       </para>
+      <para>
+        This syntax does not distinguish file names from directory
+        names; a trailing slash in a pattern will never match any
+        actual path. A whole directory tree may be selected with a
+        pattern like "foo/*".
+      </para>
+      <para>
+        The space character, used to separate patterns, cannot be
+        escaped with a backslash. A path like "foo bar" may be
+        selected with a pattern like "foo?bar".
+      </para>
     </section>
 
   </section>