make-network-process doc clarification

* src/process.c (Fmake_network_process): Further doc clarification
for listening on "::".

1 files changed, 2 insertions, 1 deletions

diff --git a/src/process.c b/src/process.c
index e53d5d88945..f3daf37636c 100644
--- a/src/process.c
+++ b/src/process.c
@@ -3759,7 +3759,8 @@ address.  The symbol `local' specifies the local host.  If specified
 for a server process, it must be a valid name or address for the local
 host, and only clients connecting to that address will be accepted.
 If all interfaces should be bound, an address of \"0.0.0.0\" (for
-ipv4) or \"::\" (for ipv6) can be used.  `local' will use IPv4 by
+ipv4) or \"::\" (for ipv6) can be used.  (On some operating systems,
+using \"::\" list on both ipv4 and ipv5.)  `local' will use IPv4 by
 default, use a FAMILY of 'ipv6 to override this.
 
 :service SERVICE -- SERVICE is name of the service desired, or an