Statically allocate string concatinations using FMT

[saikishor]

          could we please add a follow-up issue to make this statically allocated by using FMT?

Originally posted by @bmagyar in #1871 (comment)

[github-actions]

This issue is being labeled as stale because it has been open 45 days with no activity. It will be automatically closed after another 45 days without follow-ups.

[mini-1235]

I am not sure if I understand this issue correctly, does it mean to add something like

const auto diag_summary = fmt::format(
    "Controller Manager has bad periodicity: {:.2f} Hz. Expected consistent {:.2f} Hz",
    cm_stats.average, get_update_rate());

to replace the original one?

[christophfroehlich]

I think so, yes @saikishor?

[saikishor]

@mini-1235 Yes, we need to do it similar way, the only thing is it is missing FMT_COMPILE . You can check more details here : https://fmt.dev/9.1.0/api.html#format-string-compilation