[master] 4cbb030 vtest: for MESSAGE to be useful, we need a way to set it

[Nils Goroll]

commit 4cbb030c6609de0867a75f9563d24454bfbfba8b
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Wed Dec 7 12:18:29 2016 +0100

    vtest: for MESSAGE to be useful, we need a way to set it

diff --git a/tools/vtest.sh b/tools/vtest.sh
index 312c08e..cf605f8 100755
--- a/tools/vtest.sh
+++ b/tools/vtest.sh
@@ -38,7 +38,7 @@ mkdir -p tmp
 
 # Message to be shown in result pages
 # Max 10 char of [A-Za-z0-9/. _-]
-MESSAGE=
+MESSAGE="${MESSAGE:-}"
 
 WAITPERIOD=60		# unit: Seconds