C++: Prepare BufferWrite.qll for autoformat
C++: Prepare BufferWrite.qll for autoformat

The autoformatter cannot process these long end-of-line comments
properly when the line starts with `or`.

github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql,github/codeql