From 769375ca5fd910773362bdb45314b6cdfed9447b Mon Sep 17 00:00:00 2001
From: Mikhail Gusarov <dottedmag@dottedmag.net>
Date: Sat, 28 Dec 2013 17:31:42 +0100
Subject: [PATCH] Use sh 'default value' expansion more idiomatic construct

---
 vcsh | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/vcsh b/vcsh
index 60d0407..79ae0e0 100755
--- a/vcsh
+++ b/vcsh
@@ -360,9 +360,8 @@ write_gitignore() {
 
 	# Contrary to GNU mktemp, mktemp on BSD/OSX requires a template for temp files
 	# Use the template GNU mktemo defaults to
-	# The downside to this is that we need to set TMPDIR explicitly; this may or may not be empty, so...
-	[ -z "$TMPDIR" ] && TMPDIR='/tmp'
-	tempfile=$(mktemp ${TMPDIR}/tmp.XXXXXXXXXX) || fatal "could not create tempfile: '${tempfile}'" 51
+	# The downside to this is that we need to account for unset TMPDIR
+	tempfile=$(mktemp ${TMPDIR:-/tmp}/tmp.XXXXXXXXXX) || fatal "could not create tempfile: '${tempfile}'" 51
 
 	echo '*' > "$tempfile" || fatal "could not write to '$tempfile'" 57
 	for gitignore in $gitignores; do
-- 
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