[librsvg] Update NEWS

[Federico Mena Quintero <federico src gnome org>]

commit ad6ab8135e0af4c9ffdb5e3434c78af4ff9a17b4
Author: Federico Mena Quintero <federico gnome org>
Date:   Mon Sep 24 10:37:17 2018 -0500

    Update NEWS

 NEWS | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/NEWS b/NEWS
index 52cb10c9..8224caa3 100644
--- a/NEWS
+++ b/NEWS
@@ -14,6 +14,7 @@ Version 2.45.0
 - Fix #342 - Don't crash if a <use> node references one of its ancestors.
 - Special thanks to Ivan Molodetskikh for doing a fuzz-testing run for
   this round.
+- Fix #344 - Don't panic when a viewBox has overflowing numbers.
 - Fix #345 - Fix panics due to bad path parsing and overflows in
   surface size.
 - Updates to the CI infrastructure and the build documentation (Jordan