api: add support of specifier %! for timestamp in function util_strftimeval

doc/en/weechat_plugin_api.en.adoc

@@ -4698,10 +4698,10 @@ This function is not available in scripting API.
 
 ==== util_strftimeval
 
-_WeeChat ≥ 4.2.0._
+_WeeChat ≥ 4.2.0, updated in 4.3.0._
 
 Format date and time like function `strftime` in C library, using `struct timeval`
-as input, and supporting extra specifiers for microseconds.
+as input, and supporting extra specifiers.
 
 Prototype:
 
@@ -4718,6 +4718,7 @@ Arguments:
 ** `%.N` where `N` is between 1 and 6: zero-padded microseconds on N digits
    (for example `%.3` for milliseconds)
 ** `%f`: alias of `%.6`
+** `%!`: timestamp as integer, in seconds (value of tv->tv_sec)
 
 Return value:
 

doc/fr/weechat_plugin_api.fr.adoc

@@ -4777,11 +4777,11 @@ Cette fonction n'est pas disponible dans l'API script.
 
 ==== util_strftimeval
 
-_WeeChat ≥ 4.2.0._
+_WeeChat ≥ 4.2.0, mis à jour dans la 4.3.0._
 
 Formatter la date et l'heure comme la fonction `strftime` de la bibliothèque C,
 en utilisant un `struct timeval` en entrée et en supportant des caractères de
-conversion pour les microsecondes.
+conversion supplémentaires.
 
 Prototype :
 
@@ -4799,6 +4799,7 @@ Paramètres :
 ** `%.N` où `N` est entre 1 and 6: microsecondes remplies avec des zéros sur
    N chiffres (par exemple `%.3` pour les millisecondes)
 ** `%f` : alias de `%.6`
+** `%!` : horodatage sous forme d'entier, en secondes (valeur de tv->tv_sec)
 
 Valeur de retour :
 

doc/it/weechat_plugin_api.it.adoc

@@ -4916,10 +4916,10 @@ Questa funzione non è disponibile nelle API per lo scripting.
 // TRANSLATION MISSING
 ==== util_strftimeval
 
-_WeeChat ≥ 4.2.0._
+_WeeChat ≥ 4.2.0, updated in 4.3.0._
 
 Format date and time like function `strftime` in C library, using `struct timeval`
-as input, and supporting extra specifiers for microseconds.
+as input, and supporting extra specifiers.
 
 Prototype:
 
@@ -4936,6 +4936,7 @@ Arguments:
 ** `%.N` where `N` is between 1 and 6: zero-padded microseconds on N digits
    (for example `%.3` for milliseconds)
 ** `%f`: alias of `%.6`
+** `%!`: timestamp as integer, in seconds (value of tv->tv_sec)
 
 Return value:
 

doc/ja/weechat_plugin_api.ja.adoc

@@ -4823,10 +4823,10 @@ weechat_printf (NULL, "date: %s",
 // TRANSLATION MISSING
 ==== util_strftimeval
 
-_WeeChat ≥ 4.2.0._
+_WeeChat ≥ 4.2.0, updated in 4.3.0._
 
 Format date and time like function `strftime` in C library, using `struct timeval`
-as input, and supporting extra specifiers for microseconds.
+as input, and supporting extra specifiers.
 
 Prototype:
 
@@ -4843,6 +4843,7 @@ Arguments:
 ** `%.N` where `N` is between 1 and 6: zero-padded microseconds on N digits
    (for example `%.3` for milliseconds)
 ** `%f`: alias of `%.6`
+** `%!`: timestamp as integer, in seconds (value of tv->tv_sec)
 
 Return value:
 

doc/sr/weechat_plugin_api.sr.adoc

@@ -4559,10 +4559,11 @@ weechat_printf (NULL, "date: %s",
 
 ==== util_strftimeval
 
-_WeeChat ≥ 4.2.0._
+_WeeChat ≥ 4.2.0, ажурирано у 4.3.0._
 
-Форматира датум и време као функција `strftime` у C библиотеци, користећи `struct timeval`
-као улаз и уз подршку додатних спецификатора за микросекунде.
+// TRANSLATION MISSING
+Format date and time like function `strftime` in C library, using `struct timeval`
+as input, and supporting extra specifiers.
 
 Прототип:
 
@@ -4579,6 +4580,8 @@ int weechat_util_strftimeval (char *string, int max, const char *format, struct
 ** `%.N` где је `N` између 1 и 6: микросекунде допуњене нулама на N цифара
    (на пример `%.3` за милисекунде)
 ** `%f`: алијас за `%.6`
+// TRANSLATION MISSING
+** `%!`: timestamp as integer, in seconds (value of tv->tv_sec)
 
 Повратна вредност: