dvdshrink is installing its docs into /usr/share/docs into /usr/share/doc like it should. dodir /usr/share/docs/dvdshrink insinto /usr/share/docs/dvdshrink doins usr/share/doc/dvdshrink/{INSTALL,README.txt,batchrip.txt,example.xml,gpl.txt}
should be just dodoc usr/share/doc/dvdshrink/{batchrip.txt,example.xml,README.txt} dodir isn't needed before insinto (-r!) anyway.
doins -r, I mean.
*** Bug 128603 has been marked as a duplicate of this bug. ***
thanks for reporting this, fixed