warning about possibly broken function

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@9379 7612ce4b-ef26-0410-bec9-ea0150e637f0

diff --git a/functions/imap_mailbox.php b/functions/imap_mailbox.php
index 2d5fe2fb651a4abbe5b891097f6ba2ceeb56207f..63509bacec6718a2f5db6346f55290f29b337a55 100755 (executable)
--- a/functions/imap_mailbox.php
+++ b/functions/imap_mailbox.php
@@ -142,6 +142,8 @@ function find_mailbox_name($line) {
 
 /**
  * Detects if mailbox has noselect flag (can't store messages)
+ * In versions older than 1.4.5 function checks only LSUB responses 
+ * and can produce pcre warnings. 
  * @param string $lsub_line mailbox line from untagged LIST or LSUB response
  * @return bool whether this is a Noselect mailbox.
  * @since 1.3.2