Ignore trailing whitespace in test diff.
Ignore trailing whitespace in test diff.

alabid/blinkdb,amplab/shark,alabid/blinkdb,lzshlzsh/shark,mattyb149/blinkdb,sameeragarwal/blinkdb_dev,mapr/shark,mapr/shark,mattyb149/blinkdb,lzshlzsh/shark,vax11780/shark,sjyk/sampleclean,lzshlzsh/shark,sjyk/sampleclean,sjyk/sampleclean,sameeragarwal/blinkdb,sameeragarwal/blinkdb,sameeragarwal/blinkdb_dev,amplab/shark,alabid/blinkdb,sameeragarwal/blinkdb,vax11780/shark,vax11780/shark,sameeragarwal/blinkdb_dev,mapr/shark,amplab/shark,mattyb149/blinkdb