Replace ::std::for_each for a more readable range-based for loop in
cases in which the function object to be applied by for_each is more
readable as the body of a for loop.

Change-Id: I5798293cdd0d784cc4c95c67e3fc6a0b930db8bb
Reviewed-on: https://gerrit.libreoffice.org/19261Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>