Because a lot of my mappings use the <Leader> key, this is the only file
that *must* be loaded before all the others, otherwise the value of
leader when the script is read will be erroneous.
I also tried to use `git write-tree` and `git commit-tree` to emulate a
manual octopus merge to preserve the line history for each file. But
honestly that gave a graph that was too ugly for a history that really
did not need that amount of accountability. However it is a fun
exercise, and I recommend to everyone to try it at least once.
See Raymond Chen's blog `The Old New Thing`, with the post titled `How
to split out pieces of a file while preserving git line history: The
hard way with commit-tree`, for an explanation.
Bruno BELANYI