Add partial code for indicating to the output function that a command finished because of a timeout.

[SVN r39416]

tools/build

@@ -1 +1 @@
-Subproject commit cba840152320a3eba9603a032798dc661b0c6004
+Subproject commit 36e3b43722a9546fc6caa4c54d432dff4540d8a4