Exec Functions (again) (again)

Putting up my old Exec Functions MR again because the current one doesn't appear to be mergeable. See !76 (closed).

changed title from Exec Function (again) (again) to Exec Functions (again) (again)

added 88 commits

• 15c57fc8...a63e6b3d - 87 commits from branch redox-os:master
• f5bbc78b - Implement basic exec functions

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Check the update to the ralloc and va_list submodules. Was it intentional?

added 26 commits

• f5bbc78b...e4be43f6 - 24 commits from branch redox-os:master
• e6a31919 - Implement basic exec functions
• a45daeca - fix submodules

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added 2 commits

• febfbcab - Implement basic exec functions
• 2907d5c0 - Merge branch 'unistd' of gitlab.redox-os.org:sajattack/relibc into unistd

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added 2 commits

• e7988495 - Merge branch 'unistd' of gitlab.redox-os.org:sajattack/relibc into unistd
• 06b2b18a - Merge branch 'unistd' of gitlab.redox-os.org:sajattack/relibc into unistd

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IDK if this is better or worse.

Better, thanks!

mentioned in commit 29a626cd

merged