[gtksourceview] latex: fix RTL command bug

[Sébastien Wilmet <swilmet src gnome org>]

commit b8e67ccd8546abc738aea2ed51b321482bbc0ece
Author: Mohammad Masood Masaeli <mm masaeli gmail com>
Date:   Sat Sep 12 15:38:20 2015 +0430

    latex: fix RTL command bug
    
    https://bugzilla.gnome.org/show_bug.cgi?id=754877

 data/language-specs/latex.lang |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/language-specs/latex.lang b/data/language-specs/latex.lang
index f9fa603..397b974 100644
--- a/data/language-specs/latex.lang
+++ b/data/language-specs/latex.lang
@@ -290,7 +290,7 @@
     </context>
 
     <context id="generic-command" style-ref="command" class="no-spell-check" extend-parent="false">
-      <match>\\[a-zA-Z ]+\*?</match>
+      <match>\\\ ?[[:alnum:]]+\*?</match>
     </context>
 
     <context id="specific-commands">