tools: fix typo in help message

Signed-off-by: chenhengqi <chenhengqi@outlook.com>
diff --git a/tools/bindsnoop.py b/tools/bindsnoop.py
index e1472a4..ac3a8aa 100755
--- a/tools/bindsnoop.py
+++ b/tools/bindsnoop.py
@@ -43,7 +43,7 @@
 examples = """examples:
     ./bindsnoop           # trace all TCP bind()s
     ./bindsnoop -t        # include timestamps
-    ./tcplife -w        # wider columns (fit IPv6)
+    ./bindsnoop -w        # wider columns (fit IPv6)
     ./bindsnoop -p 181    # only trace PID 181
     ./bindsnoop -P 80     # only trace port 80
     ./bindsnoop -P 80,81  # only trace port 80 and 81