Make output nicer for tests.

regress/Makefile

@@ -3,8 +3,31 @@ TESTS!= echo *.sh
 .PHONY: all $(TESTS)
 .NOTPARALLEL: all $(TESTS)
 
-all: $(TESTS)
+all:
+	@failed=0; failures=; \
+	for test in $(TESTS); do \
+		printf '%-40s ' "$$test"; \
+		start=$$(date +%s); \
+		if sh "$$test" >/dev/null 2>&1; then \
+			end=$$(date +%s); \
+			echo "PASS ($$((end - start))s)"; \
+		else \
+			end=$$(date +%s); \
+			echo "FAIL ($$((end - start))s)"; \
+			failed=1; \
+			failures="$$failures $$test"; \
+		fi; \
+		sleep 1; \
+	done; \
+	if [ "$$failed" -ne 0 ]; then \
+		echo; \
+		echo "failures:"; \
+		for test in $$failures; do \
+			echo " $$test"; \
+		done; \
+	fi; \
+	exit $$failed
 
 $(TESTS):
-	sh $*.sh
+	sh $@
 	sleep 1