Documentation: Describe other situations where -z affects git diff

diff --git a/Documentation/git-var.txt b/Documentation/git-var.txt
index e2f4c0901bcb4bcc5361e400ff40d70062c77ae6..458f3e2755fcc6431757af6178942ef756f6a5bd 100644 (file)
--- a/Documentation/git-var.txt
+++ b/Documentation/git-var.txt
@@ -8,7 +8,7 @@ git-var - Show a git logical variable
 
 SYNOPSIS
 --------
-'git var' [ -l | <variable> ]
+'git var' ( -l | <variable> )
 
 DESCRIPTION
 -----------
@@ -20,7 +20,7 @@ OPTIONS
        Cause the logical variables to be listed. In addition, all the
        variables of the git configuration file .git/config are listed
        as well. (However, the configuration variables listing functionality
-       is deprecated in favor of 'git config -l'.)
+       is deprecated in favor of `git config -l`.)
 
 EXAMPLE
 --------
@@ -36,6 +36,20 @@ GIT_AUTHOR_IDENT::
 GIT_COMMITTER_IDENT::
     The person who put a piece of code into git.
 
+GIT_EDITOR::
+    Text editor for use by git commands.  The value is meant to be
+    interpreted by the shell when it is used.  Examples: `~/bin/vi`,
+    `$SOME_ENVIRONMENT_VARIABLE`, `"C:\Program Files\Vim\gvim.exe"
+    --nofork`.  The order of preference is the `$GIT_EDITOR`
+    environment variable, then `core.editor` configuration, then
+    `$VISUAL`, then `$EDITOR`, and then finally 'vi'.
+
+GIT_PAGER::
+    Text viewer for use by git commands (e.g., 'less').  The value
+    is meant to be interpreted by the shell.  The order of preference
+    is the `$GIT_PAGER` environment variable, then `core.pager`
+    configuration, then `$PAGER`, and then finally 'less'.
+
 Diagnostics
 -----------
 You don't exist. Go away!::