tree 9785168faf660daa525f52d25c49289911d8403d
parent 92c63537e3f73944d92281053157a20f010a7fff
author Daniel Dunbar <daniel_dunbar@apple.com> 1496256294 -0700
committer Daniel Dunbar <daniel_dunbar@apple.com> 1496260931 -0700

[BuildSystem] Buffer command output at frontend level.

 - The lower level shouldn't buffer the output, because clients might want to
   see the streaming output from commands as soon as it comes over the pipe.

 - <rdar://problem/32233420> llbuild shouldn't buffer subprocess output before sending to delegate