[PATCHv3] transport: Catch non positive --depth option value

["\"Andrés G. Aragoneses\"" <knocte@gmail.com>]

>From 99e387151594572dc136bf1fae45593ee710e817 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20G=2E=20Aragoneses?= <knocte@gmail.com>
Date: Wed, 13 Nov 2013 16:55:08 +0100
Subject: [PATCH] transport: Catch non positive --depth option value

Instead of simply ignoring the value passed to --depth
option when it is zero or negative, now it is caught
and reported.

This will let people know that they were using the
option incorrectly (as depth<0 should be simply invalid,
and under the hood depth==0 didn't have any effect).

Signed-off-by: Andres G. Aragoneses <knocte@gmail.com>
Reviewed-by: Duy Nguyen <pclouds@gmail.com>
Reviewed-by: Junio C Hamano <gitster@pobox.com> 
---
 transport.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/transport.c b/transport.c
index 7202b77..edd63eb 100644
--- a/transport.c
+++ b/transport.c
@@ -483,6 +483,8 @@ static int set_git_option(struct git_transport_options *opts,
 			opts->depth = strtol(value, &end, 0);
 			if (*end)
 				die("transport: invalid depth option '%s'", value);
+			if (opts->depth < 1)
+				die("transport: invalid depth option '%s' (must be positive)", value);
 		}
 		return 0;
 	}
-- 
1.8.1.2