[MacPorts] WorkingWithGit modified

[MacPorts]

Page "WorkingWithGit" was changed by dstrubbe
Diff URL: <https://trac.macports.org/wiki/WorkingWithGit?action=diff&version=67>
Revision 67
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Index: WorkingWithGit
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--- WorkingWithGit (version: 66)
+++ WorkingWithGit (version: 67)
@@ -70,6 +70,10 @@
 
 
 === Commit messages === #commitmessages
+To set which text editor is used by git for writing commit messages, you can do either of:
+ * Set {{{core.editor}}} in your Git config: {{{git config --global core.editor "emacs"}}}
+ * Set the {{{GIT_EDITOR}}} environment variable: {{{export GIT_EDITOR=emacs}}}
+
 There are a number of conventions to writing Git commit messages. For a detailed explanation, see http://chris.beams.io/posts/git-commit/. As a tl;dr, here are seven short rules:
 
  1. Separate subject from body with a blank line
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