Just one comment: lintian 2.2.13 (from sid) reports:
$ lintian -i --pedantic *.changes
E: cflow: package-contains-info-dir-file usr/share/info/dir.gz
[snip]
and in fact it is correct:
$ dpkg --contents cflow_1.3-1_i386.deb | grep info
drwxr-xr-x root/root 0 2009-08-03 03:03 ./usr/share/info/
-rw-r--r-- root/root 448 2009-08-03 03:02 ./usr/share/info/dir.gz
-rw-r--r-- root/root 24212 2009-08-03 03:03 ./usr/share/info/cflow.info.gz
Well, my pbuilder produces a correct result:
$ lintian --version
Lintian v2.2.13
$ lintian -I -E --pedantic cflow_1.3-1_i386.changes && echo $?
0
$ $ dpkg --contents cflow_1.3-1_i386.deb | grep -c dir
0