Merge "Add missing characters in documentation of `compile_multilib`...

Merge "Add missing characters in documentation of `compile_multilib` property." am: 1a1b8853 am: 3fa6d056 am: 7221196b am: 0519441a

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1434051

Change-Id: I264b929f41ea29dec7e5839feafd0f990ef8cc35