Do not add /usr/local/bin or /usr/local/sbin to the PATH in any scripts.

diff -Naur arpwatch-3.2-original/arpfetch arpwatch-3.2/arpfetch
--- arpwatch-3.2-original/arpfetch	2013-02-16 03:10:28.000000000 -0500
+++ arpwatch-3.2/arpfetch	2021-12-16 08:26:26.931846139 -0500
@@ -4,8 +4,6 @@
 # arpfetch - collect arp data from a cisco using net-snmp
 #
 
-export PATH="/usr/local/bin:${PATH}"
-
 prog=`basename $0`
 
 if [ $# -ne 2 ]; then
diff -Naur arpwatch-3.2-original/bihourly.sh arpwatch-3.2/bihourly.sh
--- arpwatch-3.2-original/bihourly.sh	2016-09-16 22:40:54.000000000 -0400
+++ arpwatch-3.2/bihourly.sh	2021-12-16 08:26:35.671910709 -0500
@@ -3,9 +3,6 @@
 #
 #  bihourly arpwatch job
 #
-PATH=${PATH}:/usr/local/sbin
-export PATH
-#
 cd /usr/local/arpwatch
 #
 list="`cat list`"
diff -Naur arpwatch-3.2-original/update-ethercodes.sh.in arpwatch-3.2/update-ethercodes.sh.in
--- arpwatch-3.2-original/update-ethercodes.sh.in	2021-12-14 19:47:54.000000000 -0500
+++ arpwatch-3.2/update-ethercodes.sh.in	2021-12-16 08:26:16.309767665 -0500
@@ -6,9 +6,6 @@
 
 prog="`basename $0`"
 
-PATH=/usr/local/bin:${PATH}
-export PATH
-
 t1=/tmp/${prog}.1.$$
 
 trap 'rm -f ${t1}; exit 1' 1 2 3 15 EXIT