Log Message:
cabextract: update to 1.9.

Set TEST_TARGET.

New in 1.9
* Fixed invisible bad extraction when using cabextract -F (broken in 1.8)
* Fixed configure --with-external-libmspack which was broken in 1.8
* configure --with-external-libmspack will now use pkg-config. To configure
  it manually, set environment variables libmspack_CFLAGS and libmspack_LIBS
  before running configure.
* Now includes the test suite (make check)

New in 1.8
* cabextract -f now extracts even more badly damaged files than before