src: Remove executable bit from source files

[cgwalters]

I know this seems silly, but RPM builds of
https://github.com/coreos/coreos-installer/
are failing for me because RPM sticks these source files in
"debugsource" directories, and then a "linter" check notices
they appear to be executable but lack a shebang #! line.

There's no reason for source to be directly executable,
so remove that bit.

[bgilbert]

Commit 542c12c reinstated the execute bit on lib.rs (and, indeed, every other file it touched).

[AndyGauge]

Perfect! glad to hear we’ve regressed.

…

On Jul 31, 2020, at 9:39 PM, Benjamin Gilbert ***@***.***> wrote: Commit 542c12c <542c12c> reinstated the execute bit on lib.rs (and, indeed, every other file it touched). — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#289 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABRZBXTCPE7XOIUNR4LR7HDR6OL7FANCNFSM4LSJFNBA>.

[cgwalters]

Andy, what's the umask value on your system? Is your editor creating files with the executable bit by default for some reason?

[AndyGauge]

I'm using windows subsystem for linux on the machine I just released from. The file system that holds the files is NTFS and the file system adapter ends up causing these problems.
I'll be releasing 0.12.4 with a mac to avoid the problem.

[AndyGauge]

OK, I've published 0.12.4 to address this problem. I'll try to be more cognizant of the file permissions on all of the codebases I touch because of this, but I do apologize for this learning experience impacting other's workflow.