Fix wrong space rporting
Block size is always 512
--- tracker-1.8.1/src/libtracker-common/tracker-file-utils.c.1	2017-03-17 16:45:59.409088723 +0300
+++ tracker-1.8.1/src/libtracker-common/tracker-file-utils.c	2017-03-17 16:47:01.849483090 +0300
@@ -289,12 +289,13 @@
 guint64
 tracker_file_system_get_remaining_space (const gchar *path)
 {
+#define BSIZE 512
 	struct __statvfs st;
 	guint64 available;
 
 	if (statvfs_helper (path, &st)) {
 		available = (geteuid () == 0) ? st.f_bfree : st.f_bavail;
-		return st.f_bsize * available;
+		return BSIZE * available;
 	} else {
 		return 0;
 	}