docs: System identification and Time

Add more details to System identification and Time sections.

1 files changed, 6 insertions, 1 deletions

diff --git a/luxio.c b/luxio.c
index 7699051..27de64e 100644
--- a/luxio.c
+++ b/luxio.c
@@ -720,7 +720,7 @@ Returned by @{uname}.  Some fields are OS-specific.
 @field nodename System's name
 @field release Operating systems's release version
 @field machine Hardware identifier
-@field domainname NIS or YP domain name
+@field domainname NIS or YP domain name _Note: GNU extension_
 @table uname-table
 */
 
@@ -768,6 +768,11 @@ luxio_uname(lua_State *L) /* 4.4.1 */
 */
 
 /*** Get time in seconds.
+
+On success, returns the time as the number of seconds since the Epoch,
+1970-01-01 00:00:00 +0000 (UTC). On failure, returns -1 with errno
+set appropriately.
+
 @treturn number seconds since epoch.
 @treturn number errno
 @function time