Update test/Makefile

test/Makefile

 include Makefile.inc
-testdirs:= h2ogs h2ocg si2gs cgcell si4gs si4cg si4mlwf si4bomd si4cpmd  \
-           efield o2gs si2stress si4stress
+testdirs:= h2ogs h2ocg h2oresp \
+           si2gs si2stress cgcell \
+           si4gs si4cg si4mlwf si4bomd si4cpmd  \
+           efield o2gs si4stress siatom
 all:
-	for d in $(testdirs); do (cd $$d; $(MAKE)); done
+	for d in $(testdirs); do $(MAKE) -C $$d -w; done
 clean:
-	for d in $(testdirs); do (cd $$d; $(MAKE) clean); done
+	for d in $(testdirs); do $(MAKE) -C $$d -w clean; done