fileio: drop "newline" parameter for env file parsers

Now that we don't (mis-)use the env file parser to parse kernel command
lines there's no need anymore to override the used newline character
set. Let's hence drop the argument and just "\n\r" always. This nicely
simplifies our code.

src/shared/condition.c

@@ -471,7 +471,7 @@ static int condition_test_needs_update(Condition *c) {
                 uint64_t timestamp;
                 int r;
 
-                r = parse_env_file(NULL, p, NULL, "TIMESTAMP_NSEC", &timestamp_str, NULL);
+                r = parse_env_file(NULL, p, "TIMESTAMP_NSEC", &timestamp_str, NULL);
                 if (r < 0) {
                         log_error_errno(r, "Failed to parse timestamp file '%s', using mtime: %m", p);
                         return true;