Sadako will appear after merge :)
Sadako is a command line tool that hooks the git-pull event (post-merge) and plays a parody of a famous song.
Since Sadako's explanation is at the bottom of the README, I think that it is better for those who do not know Sadako to go through it once.
$ go get github.com/konojunya/sadako
$ sadako init
$ sadako rm
$ dep ensure
$ make build
$ make install
Sadako is a fictitious character who appears in a Japanese movie called a 'Ring'.
Leave unrefined or grudge in this world, trigger a disaster starting from the "curse video" that curses and kills those who saw.
Please check the issue.