build: make check aliases test

A common convention in auto* is to call make check rather than
make test. Let one alias the other

PR-URL: #1211
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Makefile

@@ -70,6 +70,8 @@ distclean:
 	-rm -rf deps/icu4c*.tgz deps/icu4c*.zip deps/icu-tmp
 	-rm -f $(BINARYTAR).* $(TARBALL).*
 
+check: test
+
 test: all
 	$(PYTHON) tools/test.py --mode=release message parallel sequential -J
 	$(MAKE) jslint