improved code quality, few bug fixes

modules/conf_network.sh

@@ -104,7 +104,7 @@ conf_network()
     ifup -a || true && prnt W "Ignoring errors here."
 
     unset iface if_file
-    NEED_REBOOT=true
+    export NEED_REBOOT=true
 }
 
 precheck_conf_network()
@@ -117,7 +117,7 @@ precheck_conf_network()
 	    if [[ ! -d /sys/class/net/$iface ]]; then
 		prnt E "The iface $iface, asked to configure, do not exist!"
 		die 175
-	    else 
+	    else
 		if [[ $(grep "up" /sys/class/net/$iface/operstate) ]]; then
 		    prnt W "The IPv4 iface $iface, is already configured, a reboot will be required."
 		fi