From e3f84efc32d6b01a605c93b39668653049c15188 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 8 May 2017 10:08:48 +0200
Subject: [PATCH] runtests: fix "use of undefined value" warning in -R handling

---
 tests/runtests.pl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tests/runtests.pl b/tests/runtests.pl
index 48e26142f..d20383ae8 100755
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -5179,7 +5179,11 @@ if($scrambleorder) {
     # scramble the order of the test cases
     my @rand;
     while($TESTCASES) {
-        my @all = split(/ /, $TESTCASES);
+        my @all = split(/ +/, $TESTCASES);
+        if(!$all[0]) {
+            # if the first is blank, shift away it
+            shift @all;
+        }
         my $r = rand @all;
         push @rand, $all[$r];
         $all[$r]="";