'make test' less verbose

Makefile

@@ -27,14 +27,15 @@ _kernel.h : input.cl param.h
 	echo ')_mrb_";' >>$@
 
 test : sa-solver
-	# When compiling with NR_ROWS_LOG != 20, the solutions it finds are
-	# different: testing/sols-100
-	if res=`./sa-solver --nonces 100 -v -v 2>&1 | grep Soln: | \
+	@echo Testing...
+	@if res=`./sa-solver --nonces 100 -v -v 2>&1 | grep Soln: | \
 	    diff -u testing/sols-100.nr_rows_log_20 -`; then \
 	    echo "Test: success"; \
 	else \
 	    echo "$$res\nTest: FAILED" | cut -c 1-75 >&2; \
 	fi
+#	When compiling with NR_ROWS_LOG != 20, the solutions it finds are
+#	different: testing/sols-100
 
 clean :
 	rm -f sa-solver _kernel.h *.o _temp_*