ci: is_mount: workaround

Author: scivision

+stdlib/+python/is_mount.m

@@ -4,6 +4,12 @@
 
 function y = is_mount(filepath)
 
+% some Python on CI needs this. Didn't replicate on local Windows PC.
+if ispc() && strcmp(filepath, stdlib.root_name(filepath)) && ~endsWith(filepath, ["/", "\"])
+  y = false;
+  return
+end
+
 try
   y = py.os.path.ismount(filepath);
 catch e

+stdlib/+sys/samepath.m

@@ -14,7 +14,10 @@
   flag = '-c';
 end
 
-cmd = "stat " + flag + " %d:%i " + path1 + " && stat " + flag + " %d:%i " + path2;
+cmd1 = "stat " + flag + " %d:%i " + '"' + path1 + '"';
+cmd2 = "stat " + flag + " %d:%i " + '"' + path2 + '"';
+
+cmd = cmd1 + " && " + cmd2;
 
 [s, m] = system(cmd);
 if s ~= 0