mirage/mirage: PR #1613: Refactor: qualify open

@869244e

Stages:

• ✔️ x86_64-debian-13-4.14 (3m31s)
• ✔️ arm64-debian-13-4.14 (3m29s)
• ✔️ x86_64-debian-13-5.3 (3m58s)
• ✔️ arm64-debian-13-5.3 (4m04s)

History:

• 25/09/2025 09:18 ✔️ @288a6af (4m19s)
• 25/09/2025 09:08 ✔️ @869244e (4m04s)
• 25/09/2025 09:03 ✔️ @6105309 (4m09s)
• 25/09/2025 08:56 ❌ @b81fb15 (1m46s)
• 25/09/2025 08:39 ✔️ @5e003f2 (5m04s)