You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: ipctb_spm_justify.m
    path of file: ./repos/bspm/thirdparty/MIALAB/gipc1d/ipctb_spm5_files
    
    the code of the file until where you have to start completion: function out = ipctb_spm_justify(varargin)
% ipctb_spm_justify Justifies a text string
%    OUT = ipctb_spm_justify(N,TXT) justifies text string TXT to
%    the length specified by N.
%
%    OUT = ipctb_spm_justify(OBJ,TXT) justifies text string to
%    the width of the OBJ in characters - 1.
%
%    If TXT is a cell array, then each element is treated
%    as a paragraph and justified, otherwise the string is

    
function out = ipctb_spm_justify(varargin)
% ipctb_spm_justify Justifies a text string
%    OUT = ipctb_spm_justify(N,TXT) justifies text string TXT to
%    the length specified by N.
%
%    OUT = ipctb_spm_justify(OBJ,TXT) justifies text string to
%    the width of the OBJ in characters - 1.
%
%    If TXT is a cell array, then each element is treated
%    as a paragraph and justified, otherwise the string is
%    treated as a paragraph and is justified.
%    Non a-z or A-Z characters at the start of a paragraph
%    are used to define any indentation required (such as
%    for enumeration, bullets etc.  If less than one line
%    of text is returned, then no formatting is done.
%
%    Example:
%    out = ipctb_spm_justify(40,{['Statistical Parametric ',...
%    'Mapping refers to the construction and ',...
%    'assessment of spatially extend