Sync some doc changes ClangFormatStyleOptions.rst with doc comments in `Format.h`

Summary:
These changes were corrected directly in ClangFormatStyleOptions.rst (llvm-svn: 350192 and llvm-svn: 351976) but these sections can be produced automatically using `dump_format_style.py` so sync the corresponding doc comments in `Format.h` as well.

Patch by Ronald Wampler

Reviewers: eugene, sylvestre.ledru, djasper

Reviewed By: sylvestre.ledru

Subscribers: jdoerfert, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58186

llvm-svn: 356842