- Update to libpipeline 1.2.6 (18 December 2013)
* Fix test_pump_tee to wait for its child processes before testing
their output, since otherwise not all their output might be flushed.
* pipeline_want_infile and pipeline_want_outfile now take copies of
their file name arguments.
* Restore compatibility with Automake 1.10.
* Build with large file support on systems where it is available.
* Provide a replacement clearenv function in order to support
non-glibc systems. Now tested on FreeBSD.
* Don't read uninitialised memory when testing for the end of long
lines (over 4096 bytes).