revert isfolder to isdir

Author: Remi-Gau

cpp_bids.m

@@ -86,10 +86,10 @@ function initCppBids(verbose)
         CPP_BIDS_PATHS = cat(2, CPP_BIDS_PATHS, ...
                              pathSep, ...
                              genpath(fullfile(thisDirectory, 'src')));
-        assert(isfolder(fullfile(thisDirectory, 'lib', 'bids-matlab', '+bids')));
+        assert(isdir(fullfile(thisDirectory, 'lib', 'bids-matlab', '+bids')));
         CPP_BIDS_PATHS = cat(2, CPP_BIDS_PATHS, pathSep, ...
                              fullfile(thisDirectory, 'lib', 'bids-matlab'));
-        assert(isfolder(fullfile(thisDirectory, 'lib', 'JSONio')));
+        assert(isdir(fullfile(thisDirectory, 'lib', 'JSONio')));
         CPP_BIDS_PATHS = cat(2, CPP_BIDS_PATHS, pathSep, ...
                              fullfile(thisDirectory, 'lib', 'JSONio'));