linenoise: null-terminate display buffer.

* linenoise/linenoise.c (sync_data_to_buffer): Add
missing null terminator to l->buf. This hasn't
caused a problem because no code relies on it
being a C string. That may be about to change.

1 files changed, 1 insertions, 0 deletions

diff --git a/linenoise/linenoise.c b/linenoise/linenoise.c
index eafe11be..5f952a7a 100644
--- a/linenoise/linenoise.c
+++ b/linenoise/linenoise.c
@@ -633,6 +633,7 @@ static void sync_data_to_buf(lino_t *l)
     }
 
     l->len = bptr - l->buf;
+    *bptr++ = 0;
 }
 
 /* Single line low level line refresh.