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-rw-r--r--malloc/mtrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/malloc/mtrace.c b/malloc/mtrace.c
index 6d56cf0b5c..6cdd5f3324 100644
--- a/malloc/mtrace.c
+++ b/malloc/mtrace.c
@@ -280,7 +280,7 @@ mtrace ()
if (mtb == NULL)
return;
- mallstream = fopen (mallfile != NULL ? mallfile : "/dev/null", "w");
+ mallstream = fopen (mallfile != NULL ? mallfile : "/dev/null", "wc");
if (mallstream != NULL)
{
/* Make sure we close the file descriptor on exec. */