carto/protobuf @ af8b91b8280fd55c2eec0e60047b1f11d71bdb7e

Xiang Dai e479410564 delete all duplicate empty blanks (#5758)		%!s(int64=6) %!d(string=hai) anos
..
main	624a40a387 Down-integrate internal changes to github.	%!s(int64=7) %!d(string=hai) anos
test	e479410564 delete all duplicate empty blanks (#5758)	%!s(int64=6) %!d(string=hai) anos