logger: add note on buffer local variables to use in /help logger.file.mask

doc/de/autogen/user/logger_options.asciidoc

@@ -28,7 +28,7 @@
 ** Werte: on, off (Standardwert: `off`)
 
 * [[option_logger.file.mask]] *logger.file.mask*
-** Beschreibung: `Standardmaske für Protokolldateien (Format: "Verzeichnis/zur/Datei" oder "Datei", ohne ein führendes "/", da die "Verzeichnis" Einstellung genutzt wird um vollständige Verzeichnisstrukturen zu erstellen); lokale Buffer Variablen und Datumsspezifikationen (siehe: man strftime) sind zulässig`
+** Beschreibung: `default file name mask for log files (format is "directory/to/file" or "file", without first "/" because "path" option is used to build complete path to file); local buffer variables are permitted (you should use only variables that are defined on all buffers, so for example you should NOT use $server nor $channel); date specifiers are permitted (see man strftime)`
 ** Typ: Zeichenkette
 ** Werte: beliebige Zeichenkette (Standardwert: `"$plugin.$name.weechatlog"`)
 

doc/en/autogen/user/logger_options.asciidoc

@@ -28,7 +28,7 @@
 ** values: on, off (default value: `off`)
 
 * [[option_logger.file.mask]] *logger.file.mask*
-** description: `default file name mask for log files (format is "directory/to/file" or "file", without first "/" because "path" option is used to build complete path to file); local buffer variables are permitted; date specifiers are permitted (see man strftime)`
+** description: `default file name mask for log files (format is "directory/to/file" or "file", without first "/" because "path" option is used to build complete path to file); local buffer variables are permitted (you should use only variables that are defined on all buffers, so for example you should NOT use $server nor $channel); date specifiers are permitted (see man strftime)`
 ** type: string
 ** values: any string (default value: `"$plugin.$name.weechatlog"`)
 

doc/fr/autogen/user/logger_options.asciidoc

@@ -28,7 +28,7 @@
 ** valeurs: on, off (valeur par défaut: `off`)
 
 * [[option_logger.file.mask]] *logger.file.mask*
-** description: `masque de fichier par défaut pour les fichiers de log (le format est "repertoire/vers/fichier" ou "fichier", sans le premier "/" car l'option "path" est utilisée pour construire le chemin complet vers le fichier) ; les variables locales du tampon sont permises ; les caractères de formatage de date sont autorisés (voir man strftime)`
+** description: `masque de fichier par défaut pour les fichiers de log (le format est "repertoire/vers/fichier" ou "fichier", sans le premier "/" car l'option "path" est utilisée pour construire le chemin complet vers le fichier) ; les variables locales du tampon sont permises (vous ne devriez utiliser que des variables qui sont définies sur tous les tampons, donc par exemple vous ne devriez PAS utiliser $server ou $channel) ; les caractères de formatage de date sont autorisés (voir man strftime)`
 ** type: chaîne
 ** valeurs: toute chaîne (valeur par défaut: `"$plugin.$name.weechatlog"`)
 

doc/it/autogen/user/logger_options.asciidoc

@@ -28,7 +28,7 @@
 ** valori: on, off (valore predefinito: `off`)
 
 * [[option_logger.file.mask]] *logger.file.mask*
-** descrizione: `mask del nome file predefinito per i file di log (il formato è "directory/per/file" oppure "file", senza la prima "/" perché l'opzione "path" è usata per costruire il path completo del file); sono ammesse le variabili del buffer locale; sono ammessi gli specificatori di data (consultare man strftime)`
+** descrizione: `default file name mask for log files (format is "directory/to/file" or "file", without first "/" because "path" option is used to build complete path to file); local buffer variables are permitted (you should use only variables that are defined on all buffers, so for example you should NOT use $server nor $channel); date specifiers are permitted (see man strftime)`
 ** tipo: stringa
 ** valori: qualsiasi stringa (valore predefinito: `"$plugin.$name.weechatlog"`)
 

doc/ja/autogen/user/logger_options.asciidoc

@@ -28,7 +28,7 @@
 ** 値: on, off (デフォルト値: `off`)
 
 * [[option_logger.file.mask]] *logger.file.mask*
-** 説明: `ログファイルのデフォルトファイル名マスク (フォーマットは "directory/to/file" または "file"、最初に "/" が無ければ "path" オプションがファイルへの完全なパスを作るために使われる); ローカルバッファ変数が使える; 日付指定子を使える (strftime の man を参照)`
+** 説明: `default file name mask for log files (format is "directory/to/file" or "file", without first "/" because "path" option is used to build complete path to file); local buffer variables are permitted (you should use only variables that are defined on all buffers, so for example you should NOT use $server nor $channel); date specifiers are permitted (see man strftime)`
 ** タイプ: 文字列
 ** 値: 未制約文字列 (デフォルト値: `"$plugin.$name.weechatlog"`)
 

doc/pl/autogen/user/logger_options.asciidoc

@@ -28,7 +28,7 @@
 ** wartości: on, off (domyślna wartość: `off`)
 
 * [[option_logger.file.mask]] *logger.file.mask*
-** opis: `domyślna maska nazw plików z logami (format to "ścieżka/do/pliku" lub "plik", bez pierwszego "/" ponieważ opcja "path" jest użyta do stworzenia kompletnej ścieżki do pliku); lokalne zmienne buforów dozwolone; określenia dla daty są dozwolone (zobacz man  strftime)`
+** opis: `default file name mask for log files (format is "directory/to/file" or "file", without first "/" because "path" option is used to build complete path to file); local buffer variables are permitted (you should use only variables that are defined on all buffers, so for example you should NOT use $server nor $channel); date specifiers are permitted (see man strftime)`
 ** typ: ciąg
 ** wartości: dowolny ciąg (domyślna wartość: `"$plugin.$name.weechatlog"`)