[gtksourceview] rust.lang: Add the 'union' keyword (RFC 1444)

[Garrett Regier <gregier src gnome org>]

commit ca1ea67335c3510c447810c6d73cde4dc2cbdda1
Author: Garrett Regier <garrettregier gmail com>
Date:   Mon Aug 22 03:49:28 2016 -0700

    rust.lang: Add the 'union' keyword (RFC 1444)

 data/language-specs/rust.lang |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/language-specs/rust.lang b/data/language-specs/rust.lang
index 51685a1..e7de312 100644
--- a/data/language-specs/rust.lang
+++ b/data/language-specs/rust.lang
@@ -105,6 +105,7 @@ except according to those terms.
       <keyword>super</keyword>
       <keyword>trait</keyword>
       <keyword>typeof</keyword>
+      <keyword>union</keyword>
       <keyword>unsafe</keyword>
       <keyword>unsized</keyword>
       <keyword>use</keyword>