fix test whitespace

somehow this whitespace got eaten by the opensourcing
Update README.md

No printing involved, just electronic bits
change AM_CONFIG_HEADER to AC_CONFIG_HEADERS

This is needed for OSX and I think fixes a spew on others
fix spew in folly (this is already upstream in folly)
Need short array syntax here too
Merge pull request #777 from rlerdorf/patch-3

Need short array syntax here too
Merge pull request #772 from ptarjan/spew

fix spew
Merge pull request #770 from ptarjan/fix_cmake_patch

Fix cmake patch
Merge pull request #764 from ptarjan/test_whitespace

fix test whitespace
Fix Bison paths

Some internal FB bison version thing?
Merge pull request #783 from rlerdorf/patch-3

Fix Bison paths