fix regex.

[rbtnn]

Hi.

In my Windows, I can't get a result of OmniSharpBuild.
I think that it is because Japanese csc.exe is probably the cause.

Example

c:\Users\rbtnn\Hoge\a.cs(161,17): error CS1501: 引数を 2 個指定できる、メソッド 'TooFewColumnsError' のオーバーロードはありません [C:\Users\rbtnn\Hoge\A.csproj]

[nosami]

There's a OmniSharpBuildAsync command now that uses vim-dispatch plugin. Any chance you could test that? It works in a completely different way. It's using native vim errorformat to parse the build.

[rbtnn]

Any chance you could test that?

I could build it by OmniSharpBuildAsync that uses vim-dispatch plugin. but I could not get a result of OmniSharpBuildAsync.