curl_share_setopt.3: Note sharing cookies doesn't enable the engine

Follow-up to d0a7ee3 which fixed a bug in 7.66.0 that caused
CURL_LOCK_DATA_COOKIE to enable the easy handle's cookie engine.

Bug: https://curl.haxx.se/mail/lib-2020-03/0019.html
Reported-by: Felipe Gasper
Closes https://github.com/curl/curl/pull/5048

diff --git a/docs/libcurl/curl_share_setopt.3 b/docs/libcurl/curl_share_setopt.3
index 12ee4b0dc2fbd71429546b5ec70e14155be6a9b1..c926ee3702dbc1229962e64bcab4df5316aa9de2 100644 (file)
--- a/docs/libcurl/curl_share_setopt.3
+++ b/docs/libcurl/curl_share_setopt.3
@@ -59,6 +59,8 @@ be set to one of the values described below.
 .RS
 .IP CURL_LOCK_DATA_COOKIE
 Cookie data will be shared across the easy handles using this shared object.
+Note that this does not activate an easy handle's cookie handling. You can do
+that separately by using \fICURLOPT_COOKIEFILE(3)\fP for example.
 .IP CURL_LOCK_DATA_DNS
 Cached DNS hosts will be shared across the easy handles using this shared
 object. Note that when you use the multi interface, all easy handles added to