GtThreshold : fixed bug with title for GtGauge

GtGauge     : fixed bug if no arguments for title

Signed-off-by: Laura Nervo <laura.nervo@esrf.fr>

4_grains/GtThreshold.m

@@ -93,7 +93,7 @@ classdef GtThreshold < handle
             phaseDir = fullfile(obj.param.acq.dir, '4_grains', ...
                                 sprintf('phase_%02d', phaseID));
 
-            gauge = GtGauge([firstID lastID], fprintf('Phase %02d: ', phaseID), ...
+            gauge = GtGauge([firstID lastID], sprintf('Phase %02d: ', phaseID), ...
                 'verbose', obj.conf.verbose);
             for grainID = firstID : lastID
                 gauge.incrementAndDisplay();

zUtil_DataStructures/GtGauge.m

@@ -138,7 +138,11 @@ end % end of public methods
 methods (Access = protected)
     
     function start(obj)
-        obj.fprintf(obj.title, obj.args_to_title{:});
+        if ~isempty(obj.args_to_title)
+            obj.fprintf(obj.title, obj.args_to_title{:});
+        else
+            obj.fprintf(obj.title);
+        end
     end
 
     function setStyle(obj, style)