[ninja-build] Add ninja.vim file

[Ben Boeckel]

commit 15f8d5cb511cebd17054b91bab8e6ebcc36fd393
Author: Ben Boeckel <mathstuf at gmail.com>
Date:   Fri Jul 20 00:22:10 2012 -0400

    Add ninja.vim file

 ninja.vim |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/ninja.vim b/ninja.vim
new file mode 100644
index 0000000..1f1814a
--- /dev/null
+++ b/ninja.vim
@@ -0,0 +1 @@
+au! BufNewFile,BufRead *.ninja        setf ninja