Good call, pheonix! I didn't know about that one.
Code:

02/02/2000 - mIRC v5.7
 
53.Control+L in Editor now opens the Load file dialog, Control+S now
   saves the current file, and [color:#840017]Control+H[/color] now checks the brackets.

DALnet: #HelpDesk and #m[color:#FF0000]IR[color:#EEEE00]C