Fix formatting

Use hand written thin wrappers instead of dynamically generating test cases.

v2

I think the pdopenpid_exiting has been failing on riscv64 since this commit introduced it:

Correct me if my understanding is wrong, but they seem necessary in the other places. All other instances are like this:

I mean that the backing file's permissions have already been checked since it has been successfully opened at that point, and the calling process's privilege to mount is checked elsewhere. Isn't that already checked in sys/kern/vfs_mount.c:vfs_domount()?

Add BINARY_ALIAS for gdate and improve formatting.

@manu Maintainer timeout. Let me know ASAP if you need any changes to v2 of this after I post it. I will be committing after testing all u-boot ports with SOURCE_DATE_EPOCH and once the ports tree is unfrozen.