Function padWithZeros( value, ndigit )

Description:
Takes an integer argument and returns a string representing the same numeric value but padded with leading zeros to a specified length.
Parameters:
value (long integer)
numeric value to pad
ndigit (integer)
the number of digits in the resulting string
Return Value (String):
a string evaluating to the same as value with at least ndigit characters
Example:
padWithZeros(23,5) = "00023"
Signature:
String padWithZeros(long, int)