Disable p_iputils test

upstreamcentostests.sh

@@ -44,6 +44,8 @@ cat > ./skipped-tests.list  <<DELIM
 8|tests/p_ntp/*|We have our own NTP servers, checking in a separate test
 7|tests/p_ipa-server/*|No Freeipa default tests, also, we use cern-get-keytab
 8|tests/p_ipa-server/*|No Freeipa default tests, also, we use cern-get-keytab
+7|tests/p_iputils/*|Traceroute can fail for unknown reasons
+8|tests/p_iputils/*|Traceroute can fail for unknown reasons
 7|tests/p_postfix/*|No postfix tests are required, avoid spamming node owner
 8|tests/p_postfix/*|No postfix tests are required, avoid spamming node owner
 7|tests/p_sendmail/*|No mail tests are required, avoid spamming node owner
@@ -119,7 +121,7 @@ patch -p0 --ignore-whitespace <<'DELIM'
    TTL=$(grep -c 'Too many hops' ${FILE})
    GW=$(grep -c ${defgw} ${FILE})
    if ([ $COUNT = 1 ] || [ $COUNT = 2 ])
---- ../mtr_test.sh	2020-07-22 10:07:09.370957352 +0200
+--- tests/p_mtr/mtr_test.sh	2020-07-22 10:07:09.370957352 +0200
 +++ tests/p_mtr/mtr_test.sh	2020-07-22 10:11:26.710029174 +0200
 @@ -5,20 +5,21 @@