util-linux: fix TEST. (#3345)

sys-apps/util-linux/util_linux-2.33.recipe

@@ -226,5 +226,8 @@ INSTALL()
 
 TEST()
 {
-	make check
+	# Set TS_OPTS="" otherwise "--nonroot" is passed to tests/run.sh which
+	# then returns "Ignore util-linux test suite [non-root UID expected]."
+	LIBRARY_PATH="$sourceDir/.libs${LIBRARY_PATH:+:$LIBRARY_PATH}" \
+	make check TS_OPTS=
 }