SRC and DST prefixes in diff

[Artem]

Profix should be confgurable, cause many tools support default diff file naming, like:
$ git diff
diff --git a/some/file/Name b/some/file/Name
index 0dc060a..0c98bb1 100644
--- a/some/file/Name
+++ b/some/file/Name

[Artem]

I cant find where this approach is used. Will open new one if I'll step on it.