MINOR: debug: enable memory poisonning to use byte 0
When debugging an issue, sometimes it can be useful to be able to use
byte 0 to poison memory areas, resulting in the same effect as a calloc().
This patch changes the default mem_poison_byte to -1 to disable it so that
all positive values are usable.
diff --git a/src/memory.c b/src/memory.c
index 61c150b..d9cef64 100644
--- a/src/memory.c
+++ b/src/memory.c
@@ -20,7 +20,7 @@
#include <proto/log.h>
static struct list pools = LIST_HEAD_INIT(pools);
-char mem_poison_byte = 0;
+int mem_poison_byte = -1;
/* Try to find an existing shared pool with the same characteristics and
* returns it, otherwise creates this one. NULL is returned if no memory