fix(formatairfoil): issue with autosave

Signed-off-by: Thomas Lambert <t.lambert@uliege.be>

+af_tools/formatairfoilcoord.m

@@ -158,7 +158,7 @@ function Dat = formatairfoilcoord(varargin)
                 filename = [filename{1}, '-', outputFormat];
             end
             filename = appendextension(filename, '.dat');
-            filename = fullfile(Dat(i).path, filename);
+            filename = string(fullfile(Dat(i).path, filename));
             header = Dat(i).airfoil;
             savetodat(filename, header, Dat(i).array);
         end

CHANGELOG.md

@@ -22,8 +22,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- **formatairfoilcoord**: fix issue with autosave
 - **xf2mat**: add error when input is not a proper xfoil/xflr5 result
-
 - **plotpolar**: fix issue when unavailable data
 
 ## [4.0.0] - 2022-06-09