The message now look like this:

2 files missing from the 9ff97version of the toolchain:
        vs2013_files\9ff97\win_sdk\Include\10.0.10240.0\ucrt\assert.h
        vs2013_files\9ff97\win_sdk\Include\10.0.10240.0\ucrt\complex.h
22 extra files in the 9ff97version of the toolchain:
        vs2013_files\9ff97\win_sdk\Include\10.0.10240.0\ucrt\assert_.h
        vs2013_files\9ff97\win_sdk\Include\10.0.10240.0\ucrt\complex_.h
        vs2013_files\9ff97\win_sdk\Source\10.0.10240.0\ucrt\string\wmemmove_s.cpp
        vs2013_files\9ff97\win_sdk\Source\10.0.10240.0\ucrt\time\asctime.cpp
        vs2013_files\9ff97\win_sdk\Source\10.0.10240.0\ucrt\time\clock.cpp
        vs2013_files\9ff97\win_sdk\Source\10.0.10240.0\ucrt\time\ctime.cpp
        vs2013_files\9ff97\win_sdk\Source\10.0.10240.0\ucrt\time\days.cpp
        vs2013_files\9ff97\win_sdk\Source\10.0.10240.0\ucrt\time\difftime.cpp
        vs2013_files\9ff97\win_sdk\Source\10.0.10240.0\ucrt\time\ftime.cpp
        vs2013_files\9ff97\win_sdk\Source\10.0.10240.0\ucrt\time\gmtime.cpp
        ...

R=thakis@chromium.org

Review-Url: https://codereview.chromium.org/2092753003