[raster] Minor style fix.
diff --git a/src/raster/ftraster.c b/src/raster/ftraster.c
index 1c51f91..e4bab98 100644
--- a/src/raster/ftraster.c
+++ b/src/raster/ftraster.c
@@ -2114,7 +2114,7 @@
while ( current )
{
current->X = *current->offset;
- current->offset += current->flags & Flow_Up ? 1 : -1;
+ current->offset += ( current->flags & Flow_Up ) ? 1 : -1;
current->height--;
current = current->link;
}