DOC: config: Add the missing tune.fail-alloc option from global listing

This global option is documented but it is not in the list of supported
options for the global section. So let's add it.

This patch could be backported to all stable versions.

(cherry picked from commit 760a3841bdf0114809ae3fe2faf7996750cb41a6)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 6a66a61e67492a4c43573a7dc6556738cdf8720f)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit 45d23ba5fa974ddd18aa98b3a473ab2218304cf9)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit a718014d52c3dcf7ade89316bfbfb4358b282d38)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed