[docs] Specify Objective-C max line length. (#16503)

Update coding standards doc to specify Objective-C max line length of 120 to be consistent with C++.
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Edward Chen 2023-06-28 16:58:23 -07:00 committed by GitHub
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@ -236,6 +236,7 @@ e.g. `test_method_x_raises_error_when_dims_is_not_a_sequence`
## Objective-C/C++ Code Style
Please follow the [Google Objective-C/C++ Style Guide](https://google.github.io/styleguide/objcguide.html).
Please follow the [Google Objective-C/C++ Style Guide](https://google.github.io/styleguide/objcguide.html) with the following alteration(s):
- The maximum line length is 120 for consistency with the C++ code.
Clang-format can be used to format Objective-C/C++ code. The `.clang-format` file is in the repository root directory.