The Release FAQ says "Every source file must contain the appropriate ASF License text." http://www.apache.org/dev/release.html#which-files-contain-license
The question often comes up if that really means MUST and if it means every single file in SVN or with a source distribution when a release is being made.
I can't find any links now but thought i remember being told some years ago on legal-discuss was that the top level LICENSE file covers everything anyway so the individual license headers aren't strictly necessary especially for source files without significant IP. Could we get a opinion here on if thats true? So for example things like short README files perhaps don't need a license header or files without significant IP where the header can be problematic for some reason.
Any opinions here either way?