Determines whether short records are to be padded.
Format
/PAD [=[%b]x]
/NOPAD (DEFAULT)
Specifies that the short records are to be padded with either
ASCII characters (A through Z, a through z, or 0 through 9) or
numeric values.
To specify x as a numeric value, you must specify the numeric
base using the percent symbol (%) followed by one of the
following characters:
D Indicates that x is a decimal number.
O Indicates that x is an octal number.
X Indicates that x is a hexadecimal number.
The numeric value can be any number from 0 to 255.