Localize $_punct_c in get_if_var() and whitespace clean-ups.

Based on:	changes in r206408 by dougb

etc/network.subr

@@ -194,7 +194,7 @@ ifconfig_down()
 #	$default if given.
 get_if_var()
 {
-	local _if _punct _var _default prefix suffix
+	local _if _punct _punct_c _var _default prefix suffix
 
 	if [ $# -ne 2 -a $# -ne 3 ]; then
 		err 3 'USAGE: get_if_var name var [default]'
@@ -505,7 +505,7 @@ ifexists()
 }
 
 # ipv4_up if
-#	add IPv4 addresses to the interface $if 
+#	add IPv4 addresses to the interface $if
 ipv4_up()
 {
 	local _if _ret
@@ -615,14 +615,14 @@ ipv6_down()
 ipv4_addrs_common()
 {
 	local _ret _if _action _cidr _cidr_addr
-	local _ipaddr _netmask _range _ipnet _iplow _iphigh _ipcount 
+	local _ipaddr _netmask _range _ipnet _iplow _iphigh _ipcount
 	_ret=1
 	_if=$1
 	_action=$2
-    
+
 	# get ipv4-addresses
 	cidr_addr=`get_if_var $_if ipv4_addrs_IF`
-    
+
 	for _cidr in ${cidr_addr}; do
 		_ipaddr=${_cidr%%/*}
 		_netmask="/"${_cidr##*/}
@@ -635,7 +635,7 @@ ipv4_addrs_common()
 		if [ "${_action}" = "-alias" ]; then
 			_netmask=""
 		fi
-        
+
 		_ipcount=${_iplow}
 		while [ "${_ipcount}" -le "${_iphigh}" ]; do
 			eval "ifconfig ${_if} ${_action} ${_ipnet}.${_ipcount}${_netmask}"