* test/misc/test_ruby_mode.rb (EXPR_SAVE): use a numeric prefix
argument of 0, not to make the previous version into a backup
file, instead of backup-inhibited.
* test/misc/test_ruby_mode.rb (run_emacs): always save the buffer
if modified.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56222 b2dd03c8-39d4-4d8f-98ff-823fe69b080e