Undefined variable: b:current_syntax

[ianks]

/home/ianks/.yadr/editors/vim/plugged/rspec.vim/syntax/rspec.vim, line 7
Vim(let):E121: Undefined variable: b:current_syntax
Error occurred while executing "open" action!

Since #22 was merged I have been getting this error when opening any *_spec.rb file. b:current_syntax is not guanteed to be defined, and it seems it fails at this point. I am not sure why this is different in my case, but it seems ruby syntax is not loaded before the rspec.vim is loaded.

[keith]

I've reverted that PR until we have a fix. #24

Thanks!