Describes the cause and action for error messages.
Error Message(English)：
merge already up to date
Git merge - Already up-to-date
https://stackoverflow.com/questions/49182251/git-merge-already-up-to-date
Git merge Already up-to-date
https://stackoverflow.com/questions/21602231/git-merge-already-up-to-date
git merge Already up to date when it is not
https://stackoverflow.com/questions/22316165/git-merge-already-up-to-date-when-it-is-not
Git merge- Already up-to-date: hard reset?
https://stackoverflow.com/questions/41481869/git-merge-already-up-to-date-hard-reset
Gitの独習1 - テスト。
http://shop-helper-kuma.hatenablog.jp/entry/2017/10/01/174104
EGit/User Guide - Eclipsepedia
https://wiki.eclipse.org/EGit/User_Guide
EGit User Guide - Tasks - Help - Eclipse Platform
https://help.eclipse.org/luna/topic/org.eclipse.egit.doc/help/EGit/User_Guide/Tasks.html
Switched to branch master shravLAPTOP DR3KMEQE MINGW64 ...
https://www.coursehero.com/file/p4sraao7/Switched-to-branch-master-shravLAPTOP-DR3KMEQE-MINGW64-hell・・・
Contact for SABnzbd QNAP package ・ Issue #1 ・ clinton-hall/test ・ GitHub
https://github.com/clinton-hall/test/issues/1