Bug#1073114: unburden-home-dir: stop build-depending on pcre3

[Bastian Germann]

Control: tags -1 fixed-upstream
Control: forwarded -1 
https://github.com/xtaran/unburden-home-dir/commit/c14b8c23b843b0d53834fd988e1b4f2eb3331218

Can you please publish the release with this fixed and import it into
Debian?