Fix RST formatting in NEWS file

*FileID is interpreted as a start-of-bold, without corresponding end
marker. Sorry for not catching it in the first place.

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Balazs Lecz <leczb@google.com>

NEWS

@@ -18,8 +18,8 @@ A small bugfix release, with no new features:
 
 Additionally, a few fixes were done to the build system (fixed parallel
 build failures) and to the unittests (fixed race condition in test for
-*FileID functions, and the default enable/disable mode for QA test is
-now customisable).
+FileID functions, and the default enable/disable mode for QA test is now
+customisable).
 
 
 Version 2.5.1