deb-override(5): updated to match current situation

Remove references to usage of sections to place the packages on the
mirrors (they are all in the pool nowadays and no longer in
dists/<codename>/<component>/binary-<arch>/<section>/). Indicate that the
Debian policy offers a list of allowed values for section and priority.

debian/changelog

@@ -15,6 +15,10 @@ dpkg (1.15.7.2) UNRELEASED; urgency=low
   * Add Bug-Ubuntu field in DEP-3 template provided in the automatic header
     of patches in 3.0 (quilt) source packages. Thanks to Benjamin Drung
     <bdrung@ubuntu.com> for the patch. Closes: #578002
+  * Update deb-override(5) by removing references to usage of sections
+    to place the packages on the mirrors and by indicating that the Debian
+    policy offers a list of allowed values for section and priority.
+    Closes: #575410
 
   [ Guillem Jover ]
   * Add powerpcspe support to ostable and triplettable.

man/deb-override.5

@@ -21,9 +21,8 @@ override
 .
 .SH DESCRIPTION
 While most information about a package can be found in the control file,
-some must be filled in by the distribution czars rather than by the
-maintainer, because they relate to the arrangement of files for release
-rather than the actual dependencies and description of the package.
+some is managed centrally by the distribution czars rather than by the
+maintainer in order to offer some global consistency.
 This information is found in the override file.
 .PP
 The override file has a simple whitespace-delimited format. Comments are
@@ -44,11 +43,8 @@ not found in the tree of binary packages are ignored.
 .I priority
 and
 .I section
-place the package within the release tree; these ought not to be found
-in the control file. If the package is found in a subdirectory of
-.IR binarydir ,
-that will be checked against
-.IR section .
+correspond to the respective control fields available in the .deb. The
+allowed values are listed in the Debian policy.
 .PP
 .IR maintainerinfo ,
 if present, can be either the name of a maintainer for an unconditional
@@ -66,4 +62,5 @@ directory on any Debian mirror.
 .SH SEE ALSO
 .BR dpkg\-scanpackages (1),
 .BR dpkg\-scansources (1),
-.BR apt\-ftparchive (1).
+.BR apt\-ftparchive (1),
+.BR /usr/share/doc/debian-policy/policy.html/index.html .