Fix: "-q" displays NewGRF IDs in the wrong byte-order

[TrueBrain]

Motivation / Problem

Although -q is puzzling to me, at least one serious issue was spotted when using it for the first time: NewGRF IDs were wrongly displayed.

For example, it shows 0200434A instead of 4A430002.

Description

It always kinda makes me wonder if -q is ever used by anyone, and if the author actually tested it for "usefulness" :D Either way, fixed the issue.

Limitations

Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

• The bug fix is important enough to be backported? (label: 'backport requested')
• This PR touches english.txt or translations? Check the guidelines
• This PR affects the save game format? (label 'savegame upgrade')
• This PR affects the GS/AI API? (label 'needs review: Script API')
  • ai_changelog.hpp, game_changelog.hpp need updating.
  • The compatibility wrappers (compat_*.nut) need updating.
• This PR affects the NewGRF API? (label 'needs review: NewGRF')
  • newgrf_debug_data.h may need updating.
  • PR must be added to API tracker