tests: Makefile: Sanitize entry for qemublocktest

Remove gnulib from _LDADD and move LDADDS to replace it. Also reformat
the _SOURCES so that they can be easily extended.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

tests/Makefile.am

@@ -655,12 +655,14 @@ qemuhotplugtest_SOURCES = \
 qemuhotplugtest_LDADD = libqemumonitortestutils.la $(qemu_LDADDS) $(LDADDS)
 
 qemublocktest_SOURCES = \
-	qemublocktest.c testutils.h testutils.c
-qemublocktest_LDADD = $(LDADDS) \
+	qemublocktest.c \
+	testutils.h testutils.c \
+	$(NULL)
+qemublocktest_LDADD = \
 	../src/libvirt_conf.la \
 	../src/libvirt_util.la \
 	$(qemu_LDADDS) \
-	../gnulib/lib/libgnu.la \
+	$(LDADDS) \
 	$(NULL)
 
 domainsnapshotxml2xmltest_SOURCES = \