No need to pass the config file to mspec as mspec finds it itself

* It would also #load (because .mspec cannot be #require'd) it twice.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58478 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

common.mk

@@ -712,7 +712,7 @@ test-rubyspec-precheck: $(arch)-fake.rb
 test-rubyspec: $(TEST_RUNNABLE)-test-rubyspec
 yes-test-rubyspec: test-rubyspec-precheck
 	$(gnumake_recursive)$(Q) \
-	$(RUNRUBY) -r./$(arch)-fake $(srcdir)/spec/mspec/bin/mspec run -B $(srcdir)/spec/default.mspec $(MSPECOPT)
+	$(RUNRUBY) -r./$(arch)-fake $(srcdir)/spec/mspec/bin/mspec run $(MSPECOPT)
 no-test-rubyspec: test-rubyspec-precheck
 
 RUNNABLE = $(LIBRUBY_RELATIVE:no=un)-runnable