dyntable: fix column width calculation in case of minus sign

By the same token, improve the logical expression for determining whether all
values are infinite (it was nevertheless giving the right result, because an
“all()” is implicit when an array of booleans is passed to an “if” statement).

(cherry picked from commit ca4601bd)

matlab/dyntable.m

@@ -15,7 +15,7 @@ function dyntable(options_, title, headers, labels, values, label_width, val_wid
 % OUTPUTS
 % none
 
-% Copyright (C) 2002-2018 Dynare Team
+% Copyright (C) 2002-2022 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -46,12 +46,12 @@ label_format_leftbound  = sprintf('%%-%ds', label_width);
 
 
 % Set width of other columns
-if all(~isfinite(values))
+if all(all(~isfinite(values)))
     values_length = 4;
 else
     values_length = max(ceil(max(max(log10(abs(values(isfinite(values))))))),1)+val_precis+1;
 end
-if any(values) < 0 %add one character for minus sign
+if any(any(values < 0)) %add one character for minus sign
     values_length = values_length+1;
 end
 headers_length = cellofchararraymaxlength(headers(2:end));