txt2man: 1.5.6 -> 1.6.0
txt2man: 1.5.6 -> 1.6.0

Semi-automatic update generated by https://github.com/ryantm/nix-update tools.

This update was made based on information from https://repology.org/metapackage/txt2man/versions.

These checks were done:

- built on NixOS
- ran `/nix/store/vydx2fidxsxrqm9kanw76gbb8fp4imaz-txt2man-1.6.0/bin/src2man -h` got 0 exit code
- ran `/nix/store/vydx2fidxsxrqm9kanw76gbb8fp4imaz-txt2man-1.6.0/bin/src2man --help` got 0 exit code
- ran `/nix/store/vydx2fidxsxrqm9kanw76gbb8fp4imaz-txt2man-1.6.0/bin/bookman -h` got 0 exit code
- ran `/nix/store/vydx2fidxsxrqm9kanw76gbb8fp4imaz-txt2man-1.6.0/bin/bookman --help` got 0 exit code
- ran `/nix/store/vydx2fidxsxrqm9kanw76gbb8fp4imaz-txt2man-1.6.0/bin/txt2man -h` got 0 exit code
- ran `/nix/store/vydx2fidxsxrqm9kanw76gbb8fp4imaz-txt2man-1.6.0/bin/txt2man --help` got 0 exit code
- ran `/nix/store/vydx2fidxsxrqm9kanw76gbb8fp4imaz-txt2man-1.6.0/bin/txt2man help` got 0 exit code
- directory tree listing: https://gist.github.com/ae0f9873f1dd72fc8e50875212ed15b3

SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs