From: LOLi <loli10K@users.noreply.github.com>
Date: Sat, 18 Aug 2018 20:10:36 +0000 (+0200)
Subject: Fix arcstat.py handling of unsupported options
X-Git-Tag: zfs-0.8.0-rc1~42
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1f87313ac830970088389a6d6e68fa3ce8194aff;p=zfs

Fix arcstat.py handling of unsupported options

This change allows the arcstat.py script to handle unsupported options
gracefully and print both error and usage messages when one such option
is provided.

Reviewed-by: Giuseppe Di Natale <guss80@gmail.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7799
---

diff --git a/cmd/arcstat/arcstat.py b/cmd/arcstat/arcstat.py
index 85c83ccc4..b52a8c294 100755
--- a/cmd/arcstat/arcstat.py
+++ b/cmd/arcstat/arcstat.py
@@ -285,7 +285,7 @@ def init():
             ]
         )
     except getopt.error as msg:
-        sys.stderr.write(msg)
+        sys.stderr.write("Error: %s\n" % str(msg))
         usage()
         opts = None