Minor fixes, some cleanups, and standardising on echo("x") instead of echo "x"

git-svn-id: http://www.observium.org/svn/observer/trunk@1728 61d68cd4-352d-0410-923a-c4978735b2b8

delhost.php

@@ -11,7 +11,7 @@ if($argv[1]) {
   $host = strtolower($argv[1]);
   $id = getidbyname($host);
   if($id) {
-    echo delete_device($id);
+    echo(delete_device($id));
     echo("Removed $host\n");
   } else {
     echo("Host doesn't exist!\n");