Since ed18095127, some google fonts are included. The "Open Sans" fonts
prevents RPM packaging to work because of white spaces in file names. This
is a Python setuptools bug (https://bugs.python.org/issue809163) which is
not yet fixed.
With this commit, the "Open Sans" directory and ttf files are renamed
into "Open_Sans", solving the packaging problem.
closesodoo/odoo#35661
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>