Blob.xs: Reorder variable declaration order
Blob.xs: Silence warnings about size differences between size_t and git_off_t
Config.xs: Reorder variable declaration order
Config.xs: Don't use C99 initialization syntax
Commit.xs: Reorder variable declaration order
Reference.xs: Reorder variable declaration order
Remote.xs: Reorder variable declaration order
Signature.xs: Reorder variable declaration order
Stash.xs: Reorder variable declaration order
Stash.xs: Don't use C99 initialization syntax
Tag.xs: Reorder variable declaration order
Tag.xs: Don't use C99 initialization syntax