/**
* Add the time specified by `tm`, as formatted by `strftime`.
- * `tz_name` is used to expand %Z internally unless it's NULL.
* `tz_offset` is in decimal hhmm format, e.g. -600 means six hours west
* of Greenwich, and it's used to expand %z internally. However, tokens
* with modifiers (e.g. %Ez) are passed to `strftime`.
+ * `tz_name` is used to expand %Z internally unless it's NULL.
*/
extern void strbuf_addftime(struct strbuf *sb, const char *fmt,
const struct tm *tm, int tz_offset,