test_unit no longer needs to see itself

test/test_unit.sh

@@ -20,11 +20,9 @@
 LD_LIBRARY_PATH=../src/libFLAC/.libs:../obj/lib:$LD_LIBRARY_PATH
 export LD_LIBRARY_PATH
 PATH=../src/test_unit:../obj/bin:$PATH
+export PATH
 
-# We use the whole path to test_unit so it can find itself.  It uses it's own
-# binary as a dummy source for creating a test FLAC file so it can work on the
-# metadata.
-if `which test_unit` ; then : ; else
+if test_unit ; then : ; else
 	echo "ERROR during test_unit" 1>&2
 	exit 1
 fi