doc txt & -h consistency: fix incorrect alternates syntax
Fix the incorrect "[-o | --option <argument>]" syntax, which should be "[(-o | --option) <argument>]", we were previously claiming that only the long option accepted the "<argument>", which isn't what we meant. This syntax issue for "bugreport" originated in 238b439d698 (bugreport: add tool to generate debugging info, 2020-04-16), and for "diagnose" in 6783fd3cef0 (builtin/diagnose.c: create 'git diagnose' builtin, 2022-08-12), which copied and adjusted "bugreport" documentation and code. In the case of "Documentation/git-stash.txt" and "builtin/stash.c" this is not a "doc txt & -h consistency" change, as we're changing both versions, doing so here makes a subsequent change smaller. In that case fix the incorrect "[-o | --option <argument>]" syntax, which should be "[(-o | --option) <argument>]", we were previously claiming that only the long option accepted the "<argument>", which isn't what we meant. The "stash" issue has been with us in both the "-h" and *.txt versions since bd514cada4b (stash: introduce 'git stash store', 2013-06-15). We could claim that this isn't a syntax issue if a "vertical bar binds tighter than option and its argument", but such a rule would change e.g. this "cat-file" SYNOPSIS example to mean something we don't: ... [<rev>:<path|tree-ish> | --path=<path|tree-ish> <rev>] We have various other examples where the post-image here is already used, e.g. for "format-patch" ("-o"), "grep" ("-m"), "submodule" ("set-branch -b") etc. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>