gtSaveParameters: adapted to multi-acquisition parameters

Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>

zUtil_Parameters/gtSaveParameters.m

@@ -5,6 +5,6 @@ function gtSaveParameters(parameters)
 %     if (~strcmp(pwd(), parameters.acq.dir))
 %         warning('gtSaveParameters:wrong_path', '')
 %     end
-    parameters_file_name = fullfile(parameters.acq.dir, 'parameters.mat');
+    parameters_file_name = fullfile(parameters.acq(1).dir, 'parameters.mat');
     save(parameters_file_name, 'parameters', '-v7.3');
 end