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-rw-r--r--Documentation/git-difftool.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt
index a5bce6278..f67d2db76 100644
--- a/Documentation/git-difftool.txt
+++ b/Documentation/git-difftool.txt
@@ -58,6 +58,11 @@ is set to the name of the temporary file containing the contents
of the diff post-image. `$BASE` is provided for compatibility
with custom merge tool commands and has the same value as `$LOCAL`.
+--extcmd=<command>::
+ Specify a custom command for viewing diffs.
+ 'git-difftool' ignores the configured defaults and runs
+ `$command $LOCAL $REMOTE` when this option is specified.
+
-g::
--gui::
When 'git-difftool' is invoked with the `-g` or `--gui` option