tag -1 patch thanks
Also, it seemed that zlib is missing from building dependencies in my
sbuild chroot:
```
[ 46%] Linking CXX executable btag
/usr/bin/cmake -E cmake_link_script CMakeFiles/btag.dir/link.txt
--verbose=1
/usr/bin/c++ -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -Wall -Werror -Wl,-z,relro -Wl,-z,now -rdynamic
CMakeFiles/btag.dir/src/BasicStringFilter.cpp.o
CMakeFiles/btag.dir/src/ConfirmationHandler.cpp.o
CMakeFiles/btag.dir/src/EnglishTitleLocalizationHandler.cpp.o
CMakeFiles/btag.dir/src/InteractiveTagger.cpp.o
CMakeFiles/btag.dir/src/main.cpp.o
CMakeFiles/btag.dir/src/RenamingFilter.cpp.o
CMakeFiles/btag.dir/src/SimpleCapitalizationFilter.cpp.o
CMakeFiles/btag.dir/src/SpanishTitleLocalizationHandler.cpp.o
CMakeFiles/btag.dir/src/StandardConsole.cpp.o
CMakeFiles/btag.dir/src/TitleCapitalizationFilter.cpp.o
CMakeFiles/btag.dir/src/TitleLocalizationHandler.cpp.o -o btag
/usr/lib/riscv64-linux-gnu/libboost_filesystem.so.1.74.0
/usr/lib/riscv64-linux-gnu/libboost_system.so.1.74.0 -ltag -lz
/usr/bin/ld: cannot find -lz: No such file or directory
collect2: error: ld returned 1 exit status
make[3]: *** [CMakeFiles/btag.dir/build.make:262: btag] Error 1
```
By adding `zlib1g-dev` to Build-Depends in d/control, this is fixed.
Cheers,
Eric
