user@localhost MINGW64 ~
$ git init mini-tut
Initialized empty Git repository in C:/Users/user/mini-tut/.git/

user@localhost MINGW64 ~
$ cd mini-tut

user@localhost MINGW64 ~/mini-tut (master)
$ git commit --allow-empty -m "Initial commit"
[master (root-commit) a023c25] Initial commit

user@localhost MINGW64 ~/mini-tut (master)
$ git config --global alias.tutorialcommit
commit --allow-empty -m 'Tutorial commit'

user@localhost MINGW64 ~/mini-tut (master)
$ git tutorialcommit
[master 8c00bff] Tutorial commit

user@localhost MINGW64 ~/mini-tut (master)
$ git tutorialcommit
[master bf2a5f8] Tutorial commit

user@localhost MINGW64 ~/mini-tut (master)
$ git tutorialcommit
[master b86710f] Tutorial commit

user@localhost MINGW64 ~/mini-tut (master)
$ git branch feature master

user@localhost MINGW64 ~/mini-tut (master)
$ git checkout feature
Switched to branch 'feature'

user@localhost MINGW64 ~/mini-tut (feature)
$ git tutorialcommit
[feature 6382497] Tutorial commit

user@localhost MINGW64 ~/mini-tut (feature)
$ git tutorialcommit
[feature d14f902] Tutorial commit

user@localhost MINGW64 ~/mini-tut (feature)
$ git tutorialcommit
[feature c0715ff] Tutorial commit

user@localhost MINGW64 ~/mini-tut (feature)
$ git checkout master
Switched to branch 'master'

user@localhost MINGW64 ~/mini-tut (master)
$ git merge feature
Updating b86710f..c0715ff
Fast-forward

user@localhost MINGW64 ~/mini-tut (master)
$ git log
commit c0715ff05a62f2fd9e656f2d77f8612e5acefe6b
Author: Andrew Zyabin <schastlilya@gmail.com>
Date:   Thu Feb 16 11:52:41 2017 +0400

    Tutorial commit

commit d14f902bbd04eb4e7c34c64a39c749905e937f6b
Author: Andrew Zyabin <schastlilya@gmail.com>
Date:   Thu Feb 16 11:52:41 2017 +0400

    Tutorial commit

commit 638249717dd4d0551252e98669be6b1e06ac111f
Author: Andrew Zyabin <schastlilya@gmail.com>
Date:   Thu Feb 16 11:52:40 2017 +0400

    Tutorial commit

commit b86710f1ae331df4bb38dd31cd4ddfd38bff2026
Author: Andrew Zyabin <schastlilya@gmail.com>
Date:   Thu Feb 16 11:52:14 2017 +0400

    Tutorial commit

commit bf2a5f88ed0ea932314b16995f9ba726dbdc7a5e
Author: Andrew Zyabin <schastlilya@gmail.com>
Date:   Thu Feb 16 11:52:14 2017 +0400

    Tutorial commit

commit 8c00bff8750681103d8c5007483ec94100705bd9
Author: Andrew Zyabin <schastlilya@gmail.com>
Date:   Thu Feb 16 11:52:13 2017 +0400

    Tutorial commit

commit a023c25001b86e346a2a855686e91bf952be6b78
Author: Andrew Zyabin <schastlilya@gmail.com>
Date:   Thu Feb 16 11:51:41 2017 +0400

    Initial commit