compel/test/infect/Makefile: fix a dependency

Commit 8173ea2 ("compel/test/infect/Makefile: don't add .h to sources")
was a bad one as it removed dependency between parasite.h and spy binary.

Fix it.

travis-ci: success for More polishing for compel cli
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

compel/test/infect/Makefile

@@ -17,8 +17,8 @@ clean:
 victim: victim.c
 	$(CC) $(CFLAGS) -o $@ $^
 
-spy: spy.c | parasite.h
-	$(CC) $(CFLAGS) $(shell $(COMPEL) includes) -o $@ $^ $(COMPEL_LIBRARY)
+spy: spy.c parasite.h
+	$(CC) $(CFLAGS) $(shell $(COMPEL) includes) -o $@ $< $(COMPEL_LIBRARY)
 
 parasite.h: parasite.po
 	$(COMPEL) hgen -f $^ -l 4		\