260422.002819.CST [skip ci] revise try_mex_setup.m and getMexLibgcc.m regarding the error messages

Author: zaikunzhang

matlab/setup_tools/getMexLibgcc.m

@@ -31,7 +31,7 @@
         clear(mexName);
         evalc('mex(''-outdir'', outDir, ''-output'', mexName, exampleFile)');
     catch exception
-        error('%s: Failed to build MEX from %s.\nThe error message is\n%s\nMake sure that MEX is properly set up.', funName, exampleFile, exception.message);
+        error('%s: Failed to build MEX from %s.\nThe error message is:\n\n%s\nMake sure that MEX is properly set up.', funName, exampleFile, exception.message);
     end
 
     % Find produced MEX

matlab/setup_tools/try_mex_setup.m

@@ -129,7 +129,7 @@
 if ~isempty(exception) || mex_setup ~= 0
     fprintf('\nYour MATLAB failed to run mex(''-setup'', ''%s'').', language);
     if ~isempty(exception)
-        fprintf('\nThe error message is\n%s\n', exception.message);
+        fprintf('\nThe error message is:\n\n%s\n', exception.message);
     end
     fprintf('\nFor more details, execute the following command:\n');
     fprintf('\n  mex(''-v'', ''-setup'', ''%s'')\n', language);
@@ -203,7 +203,7 @@
     if verbose
         fprintf('\nThe MEX of your MATLAB failed to compile\n%s,\nwhich is supposed to be a MATLAB built-in example for trying MEX on %s.\n', example_file, language);
         if ~isempty(exception)
-            fprintf('\nThe error message is\n%s\n', exception.message);
+            fprintf('\nThe error message is:\n\n%s\n', exception.message);
         end
         fprintf('\nFor more details, execute the following command:\n');
         fprintf('\n  mex(''-v'', ''%s'')\n', example_file);