strpad

Add leading or trailing characters to character vector or cell array of character vectors in a single line of code.

In newer version (R2016b), it is easy to add leading or trailing characters to strings in a single line of code.
Just call the built-in function 'pad'.

So, I created this function for users with older version.
This function follows the same behaviour as the builtin.
Futhermore, the padding character, "padChar", is no need to be exactly single character.