[PATCH 1/7] Remove trailing whitespaces

[Simon McVittie]

This is not as enormous as I had feared it would be, but it's going to
make it harder to cherry-pick changes from master back to stable
branches. What do other maintainers think?

In general, we have fixed wrong whitespace (trailing whitespace, hard
tabs, etc.) when the relevant line is changing anyway, and otherwise
left historical wrong whitespace unchanged.

-- 
Simon McVittie
Collabora Ltd. <http://www.collabora.com/>