[gtksourceview] rust.lang: Fix integer suffixes

[Garrett Regier <gregier src gnome org>]

commit a95da40290145dd5213237f2e1df6b6be0bfc46e
Author: Garrett Regier <garrettregier gmail com>
Date:   Mon Aug 22 04:30:46 2016 -0700

    rust.lang: Fix integer suffixes
    
    There is not 'i' or 'u' suffix, however there
    is 'isize' and 'usize'.
    
    See: https://doc.rust-lang.org/reference.html#suffixes

 data/language-specs/rust.lang |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/language-specs/rust.lang b/data/language-specs/rust.lang
index 83fc088..8ea2c58 100644
--- a/data/language-specs/rust.lang
+++ b/data/language-specs/rust.lang
@@ -148,7 +148,7 @@ except according to those terms.
     </context>
 
     <define-regex id="int-suffix" extended="true">
-      (i8|i16|i32|i64|i|u8|u16|u32|u64|u)
+      (i8|i16|i32|i64|isize|u8|u16|u32|u64|usize)
     </define-regex>
 
     <define-regex id="exponent" extended="true">