[iptables PATCH] tests: Fix ipt-restore/0004-restore-race_0 testcase

[Phil Sutter]

Two issues fixed:

* XTABLES_LIBDIR was set wrong (CWD is not topdir but tests/). Drop the
  export altogether, the testscript does this already.

* $LINES is a variable set by bash, so initial dump sanity check failed
  all the time complaining about a spurious initial dump line count. Use
  $LINES1 instead.

Fixes: 4000b4cf2ea38 ("tests: add test script for race-free restore")
Signed-off-by: Phil Sutter <p...@nwl.cc>
---
 .../tests/shell/testcases/ipt-restore/0004-restore-race_0  | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/iptables/tests/shell/testcases/ipt-restore/0004-restore-race_0 
b/iptables/tests/shell/testcases/ipt-restore/0004-restore-race_0
index 14b910eb373bf..a92d18dcee058 100755
--- a/iptables/tests/shell/testcases/ipt-restore/0004-restore-race_0
+++ b/iptables/tests/shell/testcases/ipt-restore/0004-restore-race_0
@@ -1,6 +1,5 @@
 #!/bin/bash
 
-export XTABLES_LIBDIR=$(pwd)/extensions
 have_nft=false
 nft -v > /dev/null && have_nft=true
 
@@ -77,12 +76,12 @@ dumpfile=$(mktemp) || exit 1
 
 make_dummy_rules > $dumpfile
 $XT_MULTI iptables-restore -w < $dumpfile
-LINES=$(wc -l < $dumpfile)
+LINES1=$(wc -l < $dumpfile)
 $XT_MULTI iptables-save | grep -v '^#' > $dumpfile
 LINES2=$(wc -l < $dumpfile)
 
-if [ $LINES -ne $LINES2 ]; then
-       echo "Original dump has $LINES, not $LINES2" 1>&2
+if [ $LINES1 -ne $LINES2 ]; then
+       echo "Original dump has $LINES1, not $LINES2" 1>&2
        exit 111
 fi
 
-- 
2.21.0