set_modtime backward compatible

Author: scivision

+stdlib/set_modtime.m

@@ -8,24 +8,24 @@
 % * i: true if successful
 % * b: backend used
 
-function [i, b] = set_modtime(file, t, backend)
-arguments
-  file
-  t (1,1) datetime
-  backend (1,:) string = ["java", "python", "sys"]
+function [i, b] = set_modtime(file, time, backend)
+if nargin < 3
+  backend = ["java", "python", "sys"];
+else
+  backend = string(backend);
 end
 
 i = logical.empty;
 
 for b = backend
   switch b
     case "java"
-      i = stdlib.java.set_modtime(file, t);
+      i = stdlib.java.set_modtime(file, time);
     case "python"
       if stdlib.matlabOlderThan('R2022a'), continue, end
-      i = stdlib.python.set_modtime(file, t);
+      i = stdlib.python.set_modtime(file, time);
     case "sys"
-      i = stdlib.sys.set_modtime(file, t);
+      i = stdlib.sys.set_modtime(file, time);
     otherwise
       error("stdlib:set_modtime:ValueError", "Unknown backend: %s", b)
   end

test/TestResolve.m

@@ -1,5 +1,5 @@
 classdef (SharedTestFixtures={ matlab.unittest.fixtures.PathFixture(fileparts(fileparts(mfilename('fullpath'))))}, ...
-          TestTags = {'R2018b'}) ...
+          TestTags = {'R2017b'}) ...
   TestResolve < matlab.unittest.TestCase
 
 properties (TestParameter)

test/TestTime.m

@@ -1,5 +1,5 @@
 classdef (SharedTestFixtures={ matlab.unittest.fixtures.PathFixture(fileparts(fileparts(mfilename('fullpath'))))}, ...
-          TestTags = {'R2019b', 'impure'}) ...
+          TestTags = {'R2017b'}) ...
     TestTime < matlab.unittest.TestCase
 
 properties (TestParameter)