(process_file): Don't overflow for files of size >= 2^31

on systems with stat.st_blocks of a signed 32-bit type.
This bug causes trouble on some AIX 5.1 systems.
Report and trivial patch from Paul Townsend:
<http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00033.html>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/du.c b/src/du.c
index 12c21aa97..361f67639 100644
--- a/src/du.c
+++ b/src/du.c
@@ -537,7 +537,7 @@ process_file (FTS *fts, FTSENT *ent)
       duinfo_set (&dui,
 		  (apparent_size
 		   ? sb->st_size
-		   : ST_NBLOCKS (*sb) * ST_NBLOCKSIZE),
+		   : (uintmax_t) ST_NBLOCKS (*sb) * ST_NBLOCKSIZE),
 		  (time_type == time_mtime ? get_stat_mtime (sb)
 		   : time_type == time_atime ? get_stat_atime (sb)
 		   : get_stat_ctime (sb)));