commit 5d9e3238ae9474051b2020a04af2cbb11b613f98
Author: Robin H. Johnson <robbat2@gentoo.org>
Date:   Wed Apr 10 21:08:15 2019 +0000

    MINOR: skip get_gmtime where tm is unused
    
    For LOG_FMT_TS (%Ts), the tm variable is not used, so save some cycles
    on the call to get_gmtime.
    
    Backport: 1.9 1.8
    Signed-off-by: Robin H. Johnson <rjohnson@digitalocean.com>
    (cherry picked from commit 543d4507ca4ddd9ece5eb4e869b20ee1d2afedac)
    Signed-off-by: Willy Tarreau <w@1wt.eu>
    (cherry picked from commit 0ab133673a28fb91679f2b8471ed13ce265aa8a6)
    Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>

diff --git a/src/log.c b/src/log.c
index 9c112255..313fa55d 100644
--- a/src/log.c
+++ b/src/log.c
@@ -1651,7 +1651,6 @@ int build_logline(struct stream *s, char *dst, size_t maxsize, struct list *list
 				break;
 
 			case LOG_FMT_TS: // %Ts
-				get_gmtime(s->logs.accept_date.tv_sec, &tm);
 				if (tmp->options & LOG_OPT_HEXA) {
 					iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", (unsigned int)s->logs.accept_date.tv_sec);
 					if (iret < 0 || iret > dst + maxsize - tmplog)