[Ironruby-core] Avoiding excessive newline diff in Initializer.Generated.cs

[Sanghyeon Seo]

The goal of this one-line fix is to avoid excessive newline diff in
Initializer.Generated.cs when one runs ClassInitGenerator on
non-Windows platforms.

http://sparcs.kaist.ac.kr/~tinuviel/download/IronRuby/patch-gen-newline

Since the canonical newline character in the IronRuby repository is
\r\n, it makes sense to explicitly use it when generating
in-repository source file.

-- 
Seo Sanghyeon