Without further ado, the following was found:

Issue:    B<…>size_t n → B<…size_t> I<n>

"B<size_t wcstombs(>size_t n;\n"
"B<                char >I<dest>B<[restrict >I<n>B<], const wchar_t *restrict >I<src>B<,>\n"
"B<                size_t >I<n>B<);>\n"