qa/workunits/cephtool/test.sh: Use :- to handle TMPDIR=""

Only Luminous has seen TMPDIR="" coming into this script.

Signed-off-by: David Zafman <dzafman@redhat.com>

diff --git a/qa/workunits/cephtool/test.sh b/qa/workunits/cephtool/test.sh
index 36f9dc43ebe861046db20aabb704e5ea956a981f..d2818dc6fbe4e0b3441c3c37056ae73f9d431f73 100755 (executable)
--- a/qa/workunits/cephtool/test.sh
+++ b/qa/workunits/cephtool/test.sh
@@ -49,7 +49,7 @@ function expect_false()
 }
 
 
-TEMP_DIR=$(mktemp -d ${TMPDIR-/tmp}/cephtool.XXX)
+TEMP_DIR=$(mktemp -d ${TMPDIR:-/tmp}/cephtool.XXX)
 trap "rm -fr $TEMP_DIR" 0
 
 TMPFILE=$(mktemp $TEMP_DIR/test_invalid.XXX)