Fix include installation dir, was something like $DESTDIR/include/fruit/include/fruit/*.h, now it's $DESTDIR/include/fruit/*.h. This fixes https://github.com/google/fruit/issues/4.
Fix include installation dir, was something like $DESTDIR/include/fruit/include/fruit/*.h, now it's $DESTDIR/include/fruit/*.h.
This fixes https://github.com/google/fruit/issues/4.

google/fruit,google/fruit,d/fruit,d/fruit,d/fruit,google/fruit