Re: [Outreachy PATCH] git.c: drop NO_PARSEOPT from builtins that use parse-options

> The NO_PARSEOPT flag in the commands[] table marks builtins that
> parse their options by hand. Builtins marked with it are left out
> of "git --list-cmds=parseopt", which bash completion uses to
> decide whether it can ask a command for its options with
> "--git-completion-helper".
> 
> Four builtins have since been converted to parse-options, but are
> still marked NO_PARSEOPT:
> 
>  - patch-id, in 2871f4d447 (builtin: patch-id: add --verbatim as a
>    command mode, 2022-10-24)
>  - diff-pairs, which has used parse-options since it was introduced
>    in 5bd10b2adc (builtin: introduce diff-pairs command, 2025-02-28)
>  - fast-import, in 863937696e (fast-import: use parse_options() for
>    command line options, 2026-08-11)
>  - var, in e19f0779c6 (var: add "-z" output mode, 2026-09-26)
> 
> This causes "git fast-import --<TAB>", "git patch-id --<TAB>" and
> "git diff-pairs --<TAB>" to offer no options, even though they are
> listed by "--git-completion-helper".
> 
> Remove the flag from these four builtins, like 66fa6e8ed8 (git.c:
> update NO_PARSEOPT markings, 2022-08-19) did for others.