Whitespace cleanup

[TimidRobot]

Description The following changes make the files more consistent (easier to parse both visually and programmatically) without making any changes in how content is displayed:

1. replaced DOS/Windows line endings (\r\n) with Linux/macOS line endings (\n)
2. replaced old Mac line endings (\r) with Linux/macOS line endings (\n)
3. replaced tabs (\t) with 4 spaces ( )
4. stripped trailing spaces (\+$)

Other information Commands run:

1. converted line endings to unix newlines

   gsed -e's/\r\n/\n/g' -e's/\r/\n/g' -i *

2. replaced tabs with spaces; stripped trailing spaces

   gsed -e's/\t/    /g' -e's/ \+$//' -i *

Note: gsed is GNU Sed installed view Homebrew on macOS. On most Linux distributions, the commands above can just be run using sed instead of gsed. On systems without GNU Sed, you'll have to specify a backup suffix and delete the backups files afterwards.

Checklist:

• [x] My pull request has a descriptive title (not a vague title like Update index.md).
• [x] My pull request targets the master branch of the repository.
• [x] My commit messages follow best practices.
• [ ] I added tests for the changes I made (if applicable).
• [ ] I added or updated documentation (if applicable).
• [x] I tried running the project locally and verified that there are no visible errors. (spot checks via viewing files in browser)
  • I also ran ../../tools/prep_cc4_code.py and ../../tools/update_cc4_includes.py after to ensure these changes didn't trigger changes.

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Copyright (C) 2004, 2006 The Linux Foundation and its contributors. 1 Letterman Drive Suite D4700 San Francisco, CA, 94129

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(b) The contribution is based upon previous work that, to the best of my knowledge, is covered under an appropriate open source license and I have the right under that license to submit that work with modifications, whether created in whole or in part by me, under the same open source license (unless I am permitted to submit under a different license), as indicated in the file; or

(c) The contribution was provided directly to me by some other person who certified (a), (b) or (c) and I have not modified it.

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[TimidRobot]

Sorry for the huge pull request. The good news is that it only needs to be done once.