bash completion: Add completion for 'git help'

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 798b551514a81549d1d9b31b5a8e079e521ba657..1a13abc92223090c563a19074a29b703758d5286 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -92,7 +92,7 @@ Example
 
        # Our diff algorithm
        [diff]
-               external = "/usr/local/bin/gnu-diff -u"
+               external = /usr/local/bin/diff-wrapper
                renames = true
 
        [branch "devel"]
@@ -563,9 +563,11 @@ diff.autorefreshindex::
 diff.external::
        If this config variable is set, diff generation is not
        performed using the internal diff machinery, but using the
-       given command.  Note: if you want to use an external diff
-       program only on a subset of your files, you might want to
-       use linkgit:gitattributes[5] instead.
+       given command.  Can be overridden with the `GIT_EXTERNAL_DIFF'
+       environment variable.  The command is called with parameters
+       as described under "git Diffs" in linkgit:git[1].  Note: if
+       you want to use an external diff program only on a subset of
+       your files, you might want to use linkgit:gitattributes[5] instead.
 
 diff.renameLimit::
        The number of files to consider when performing the copy/rename