[msitools] Fix %define variable 'api.prefix' requires '{...}' ..warning

[Marc-Andre Lureau <malureau src gnome org>]

commit ed79cf41911bcddd2a2ce0edfbc3809627637460
Author: Marc-André Lureau <marcandre lureau gmail com>
Date:   Sun Nov 30 03:51:28 2014 +0100

    Fix %define variable 'api.prefix' requires '{...}' ..warning

 libmsi/sql-parser.y |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libmsi/sql-parser.y b/libmsi/sql-parser.y
index a38476d..3e33d25 100644
--- a/libmsi/sql-parser.y
+++ b/libmsi/sql-parser.y
@@ -73,7 +73,7 @@ static struct expr * build_expr_wildcard( void *info );
 
 %}
 
-%define api.prefix "sql_"
+%define api.prefix {sql_}
 %lex-param {void *info}
 %parse-param {void *info}
 %pure-parser