[gtksourceview] GTK accelerators highlight for Cyrillic letters. Fix by Urmas

[Ignacio Casal Quinteiro <icq src gnome org>]

commit e81fddf560eae5f51c14943664d2f7f29a9eb74a
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Tue Apr 12 14:20:12 2011 +0200

    GTK accelerators highlight for Cyrillic letters. Fix by Urmas
    
    https://bugzilla.gnome.org/show_bug.cgi?id=621991

 data/language-specs/po.lang |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/language-specs/po.lang b/data/language-specs/po.lang
index 326d692..8772d46 100644
--- a/data/language-specs/po.lang
+++ b/data/language-specs/po.lang
@@ -48,7 +48,7 @@
         <context ref="def:email-address"/>
         <context ref="def:net-address"/>
         <context id="mnemonic" style-ref="special">
-          <match>[&amp;_][a-zA-Z]</match>
+          <match>[&amp;_][\p{L}\p{Nd}]</match>
         </context>
         <context id="tag" style-ref="special">
 	  <match>&lt;[a-zA-Z\=\"\/ ]+&gt;</match>