Code review comment for ~dirk.zimoch/epics-base:CleanupWhitespace

I will push a new version which produces empty 'git diff --ignore-all-space' output and which is re-based to the laterst 7.0. I can continue resasing it until Andrew is done with the pending merges. I am also willing to do the same for the 3.15 branch, so that future merges can go smoothly.
My most important issue is with the indention mixing tabs and spaces. Clearing out space at the end of lines is secondary. Least important are empty lines at eof (even though they should not lead to git blame confusion).

I will leave .dbd and .dbd.pod untouched for the moment, even though they have the same indention issue. But here I would probably aim for a consistent use of tab.