[librsvg] dpi: export function to C

[Paolo Borelli <pborelli src gnome org>]

commit 503338d36a7adebeabe048b8a147fa08dca6cb74
Author: Paolo Borelli <pborelli gnome org>
Date:   Sun Jan 6 14:47:11 2019 +0100

    dpi: export function to C

 rsvg_internals/src/lib.rs | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/rsvg_internals/src/lib.rs b/rsvg_internals/src/lib.rs
index dd467f76..30464822 100644
--- a/rsvg_internals/src/lib.rs
+++ b/rsvg_internals/src/lib.rs
@@ -36,6 +36,8 @@ extern crate lazy_static;
 
 pub use color::{rsvg_css_parse_color, ColorKind, ColorSpec};
 
+pub use dpi::rsvg_rust_set_default_dpi_x_y;
+
 pub use handle::{
     rsvg_handle_rust_close,
     rsvg_handle_rust_free,