Add some missing symbols in a blind attempt to fix the buildbots. Feel free to...

Add some missing symbols in a blind attempt to fix the buildbots. Feel free to revert if this is wrong.

src/libvlccore.sym

@@ -123,6 +123,8 @@ httpd_UrlNew
 httpd_UrlNewUnique
 __image_HandlerCreate
 image_HandlerDelete
+inet_ntop
+inet_pton
 InitMD5
 input_AddSubtitles
 input_Control
@@ -342,6 +344,11 @@ ToLocale
 ToLocaleDup
 unescape_URI
 unescape_URI_duplicate
+update_Check
+update_Delete
+update_Download
+update_NeedUpgrade
+__update_New
 us_atof
 us_strtod
 utf8_fopen
@@ -382,6 +389,7 @@ __vlc_cond_init
 vlc_config_create
 vlc_config_set
 vlc_CPU
+vlc_dgettext
 vlc_error
 __vlc_event_attach
 vlc_event_detach
@@ -429,7 +437,9 @@ __vlc_object_waitpipe
 __vlc_object_yield
 vlc_pthread_fatal
 vlc_rand_bytes
+vlc_recvmsg
 vlc_sdp_Start
+vlc_sendmsg
 vlc_strcasestr
 vlc_strlcpy
 vlc_strtoll
@@ -442,6 +452,7 @@ vlc_threadvar_create
 vlc_threadvar_delete
 vlc_ureduce
 VLC_Version
+vlc_wclosedir
 vlc_wraptext
 vlm_Control
 vlm_Delete