doc txt & -h consistency: add missing options

Change those built-in commands that were attempting to exhaustively
list the options in the "-h" output to actually do so, and always
have *.txt documentation know about the exhaustive list of options.

Let's also fix the documentation and -h output for those built-in
commands where the *.txt and -h output was a mismatch of missing
options on both sides.

In the case of "interpret-trailers" fixing the missing options reveals
that the *.txt version was implicitly claiming that the command had
two operating modes, which a look at the -h version (and studying the
documentation) will show is not the case.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt
index 047decd..1532085 100644
--- a/Documentation/git-commit-graph.txt
+++ b/Documentation/git-commit-graph.txt
@@ -10,7 +10,10 @@
 --------
 [verse]
 'git commit-graph verify' [--object-dir <dir>] [--shallow] [--[no-]progress]
-'git commit-graph write' <options> [--object-dir <dir>] [--[no-]progress]
+'git commit-graph write' [--object-dir <dir>] [--append]
+			[--split[=<strategy>]] [--reachable | --stdin-packs | --stdin-commits]
+			[--changed-paths] [--[no-]max-new-filters <n>] [--[no-]progress]
+			<split options>
 
 
 DESCRIPTION