--- functions_old	2008-03-26 15:35:21.000000000 +0300
+++ functions	2008-03-28 11:30:04.000000000 +0300
@@ -320,12 +320,12 @@ function change_hostname()
 		$0 == comm {found = 1; next}
 		found {
 			if (ip == "") {ip = $1}
-			next;
+			if (NF) {found = 0}
+				next;
 		}
-		$2 == host && !found {skip = 1}
-		$1 == "127.0.0.1" {
-			print "127.0.0.1 localhost.localdomain localhost";
-			next;
+		$0 ~ "\\<" host "\\>" {
+			if (!skip) {skip = 1}
+			else {next}
 		}
 		{print}
 		END {