Merge pull request #9462 from yuwata/strv_split

make strv_split() accept empty string and use it in pager_open()

src/systemctl/systemctl.c

@@ -6785,11 +6785,9 @@ static int run_editor(char **paths) {
         if (r < 0)
                 return r;
         if (r == 0) {
-                const char **args;
-                char *editor, **editor_args = NULL;
-                char **tmp_path, **original_path, *p;
-                size_t n_editor_args = 0, i = 1;
-                size_t argc;
+                char **editor_args = NULL, **tmp_path, **original_path, *p;
+                size_t n_editor_args = 0, i = 1, argc;
+                const char **args, *editor;
 
                 argc = strv_length(paths)/2 + 1;