windows test case for path with spaces

Author: wassup05

test/system/test_path.f90

@@ -42,6 +42,10 @@ subroutine test_join_path(error)
 
             call checkpath(error, 'join_path', 'C:\Users\Bob\Pictures\2025', path)
             if (allocated(error)) return
+
+            path = join_path('C:\Users\John Doe', 'Pictures\2025') ! path with spaces
+            call checkpath(error, 'join_path', 'C:\Users\John Doe\Pictures\2025', path)
+            if (allocated(error)) return
         else
             path = join_path('/home', 'Alice')
             call checkpath(error, 'join_path', '/home/Alice', path)