vis: 0.3 -> 0.4

Semi-automatic update. These checks were performed:

- built on NixOS
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis -v` and found version 0.4
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-menu -v` and found version 0.4
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/.vis-wrapped -v` and found version 0.4
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-complete -h` got 0 exit code
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-complete --help` got 0 exit code
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-complete help` got 0 exit code
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-complete -V` and found version 0.4
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-complete -v` and found version 0.4
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-complete --version` and found version 0.4
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-complete version` and found version 0.4
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-complete help` and found version 0.4
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-open -h` got 0 exit code
- ran `/nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4/bin/vis-open --help` got 0 exit code
- found 0.4 with grep in /nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4
- found 0.4 in filename of file in /nix/store/zr63rvkc5wimxwiwglp97yvdg71yj1jx-vis-0.4

cc "@vrthra @ramkromberg"