DAYSTR()
Description
      This function returns the day of the week as a string from the locale
      information based on the date passed. If the date is
      .nul or the locale object is .nul
      then the return value is the string ".nul". 
    
Prototype
      DAYSTR (
      date ,
      SBLlocaledateinfo dt )
    ldiLocale
Parameters
| Parameter | Default value | Type name | Description | 
|---|---|---|---|
| dt | None | date | |
| ldiLocale | None | SBLlocaledateinfo | 


