What setting in my default prevents setting "log-format"

Help!
1

I am having in my haproxy.cfg at defaults a log-format without timestamp for syslog. But I do not get why it is not being accepted in my defaults section.

This is my defaults which does haproxy does not accept after a reload:

    48 defaults
     49   log     global
     50   option  httplog
     51   option  dontlognull
     52   option  abortonclose
     53   timeout connect 5000
     54   timeout client  50000
     55   timeout server  50000
     56   # exchange outlook mapi http
     57   option accept-invalid-http-request
     58   no option http-use-htx
     59   # errorfile 400 /etc/haproxy/errors/400.http
     60   # errorfile 403 /etc/haproxy/errors/403.http
     61   # errorfile 408 /etc/haproxy/errors/408.http
     62   # errorfile 500 /etc/haproxy/errors/500.http
     63   # errorfile 502 /etc/haproxy/errors/502.http
     64   # errorfile 503 /etc/haproxy/errors/503.http
     65   # errorfile 504 /etc/haproxy/errors/504.http
     66   #default log format http:
     67   #log-format "%ci:%cp [%tr] %ft %b/%s %TR/%Tw/%Tc/%Tr/%Ta %ST %B %CC %CS %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"
     68   log-format "%ci:%cp %ft %b/%s %TR/%Tw/%Tc/%Tr/%Ta %ST %B %CC %CS %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"
     69   #default-server inter 20s downinter 10s init-addr none weight 100 ca-file /etc/ssl/certs/ca-roosit.crt
     70   default-server inter 20s downinter 10s init-addr last,libc,none weight 100 ca-file /etc/ssl/certs/xxxxx.crt

When I move the log-format line to the top, haproxy accepts the cfg file after a reload with this config

    48 defaults
     49   log     global
     50   log-format "%ci:%cp %ft %b/%s %TR/%Tw/%Tc/%Tr/%Ta %ST %B %CC %CS %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"
     51   option  httplog
     52   option  dontlognull
     53   option  abortonclose
     54   timeout connect 5000
     55   timeout client  50000
     56   timeout server  50000
     57   # exchange outlook mapi http
     58   option accept-invalid-http-request
     59   no option http-use-htx
     60   # errorfile 400 /etc/haproxy/errors/400.http
     61   # errorfile 403 /etc/haproxy/errors/403.http
     62   # errorfile 408 /etc/haproxy/errors/408.http
     63   # errorfile 500 /etc/haproxy/errors/500.http
     64   # errorfile 502 /etc/haproxy/errors/502.http
     65   # errorfile 503 /etc/haproxy/errors/503.http
     66   # errorfile 504 /etc/haproxy/errors/504.http
     67   #default log format http:
     68   #log-format "%ci:%cp [%tr] %ft %b/%s %TR/%Tw/%Tc/%Tr/%Ta %ST %B %CC %CS %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"
     69   #default-server inter 20s downinter 10s init-addr none weight 100 ca-file /etc/ssl/certs/ca-roosit.crt
     70   default-server inter 20s downinter 10s init-addr last,libc,none weight 100 ca-file /etc/ssl/certs/xxxxxxt.crt

But of course this does not makes sense since option httplog overrides it. (If I put the same line at a frontend, it is fine, so I think the syntax is ok)

haproxy 2.2