up to 7.3.929

7.3.924  Python interface can't easily access options
7.3.925  typos in source code and build files
7.3.926  triggering autocommands is wrong for :tabclose et al.
7.3.927  missing combining characters when putting text in a register
7.3.928  (after 7.3.924) can't build with strict C compiler
7.3.929  (after 7.3.924) unused variable, not freeing unused string