default_charset bug

[onlyis4u]

I found a character-set bug from the source of roundcube.
The problem exists in program/include/rcube_imap.php, and it is also found in svn revision 1291.
Below is the erroneous code, and the patched code.

original code of 1291:

function set_charset($cs)
  {
  $this->default_charset = $ch;
  }

patch code:

function set_charset($cs)
  {
  $this->default_charset = $cs;
  }

[alec]

Fixed in r1311