ie.
void f(void);
becomes
void f();
I used the following command to make the changes:
git grep -lP '\(\s*void\s*\)' -- *.cxx \
| xargs perl -pi -w -e 's/(\w+)\s*\(\s*void\s*\)/$1\(\)/g;'
and ran it for both .cxx and .hxx files.
Change-Id: I314a1b56e9c14d10726e32841736b0ad5eef8ddd
see https://gerrit.libreoffice.org/#/c/3367/
and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details
Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a