Standardize debhelper usage

- Create all directories in debian/dirs rather than creating some on
  the dh_installdirs command line
- Rename debian/dirs to debian/apt.dirs, debian/examples to
  debian/apt.examples

debian/changelog

@@ -5,6 +5,11 @@ apt (0.5.29) unstable; urgency=low
     packages
   * Place timestamp files in /var/lib/apt/periodic, rather than
     /var/lib/apt itself
+  * Standardize debhelper files a bit
+    - Create all directories in debian/dirs rather than creating some on
+      the dh_installdirs command line
+    - Rename debian/dirs to debian/apt.dirs, debian/examples to
+      debian/apt.examples
 
  --
 

debian/rules

@@ -187,7 +187,7 @@ apt: build debian/shlibs.local
 	dh_testdir -p$@
 	dh_testroot -p$@
 	dh_clean -p$@ -k
-	dh_installdirs -p$@ /usr/share/bug/$@
+	dh_installdirs -p$@
 #
 # apt install
 #