[process-stats-dir] Switch to buffered output
[process-stats-dir] Switch to buffered output

Unbuffered output is unsupported for non-binary
files.

apple/swift,apple/swift,apple/swift,apple/swift,benlangmuir/swift,apple/swift,benlangmuir/swift,JGiola/swift,benlangmuir/swift,glessard/swift,benlangmuir/swift,roambotics/swift,glessard/swift,glessard/swift,apple/swift,JGiola/swift,JGiola/swift,JGiola/swift,roambotics/swift,glessard/swift,roambotics/swift,glessard/swift,glessard/swift,benlangmuir/swift,roambotics/swift,JGiola/swift,roambotics/swift,JGiola/swift,roambotics/swift,benlangmuir/swift