設定 subversion 預設的編輯器為 vi

修改 ~/.subversion/config 在 [helpers] 項目裡加上 editor-cmd = vi

[helpers]
### Set editor-cmd to the command used to invoke your text editor.
###   This will override the environment variables that Subversion
###   examines by default to find this information ($EDITOR, 
###   et al).
# editor-cmd = editor (vi, emacs, notepad, etc.)
editor-cmd = vi