qemu_strdup() doesn't copy alast character

Because of off by one error.

Signed-off-by Gleb Natapov <[email protected]>

diff --git a/qemu-malloc.c b/qemu-malloc.c index 8ad6168..3bffae1 100644
--- a/qemu-malloc.c
+++ b/qemu-malloc.c
@@ -60,6 +60,6 @@ char *qemu_strdup(const char *str)

     ptr = qemu_malloc(len + 1);
     if (!ptr)
         return NULL;
 -    pstrcpy(ptr, len, str);
 +    pstrcpy(ptr, len + 1, str);
     return ptr;

}