Qual: Add abstract write_file to ModelePDFStock & ModelePDFStockTransfer

And update phpdoc for derived classes

htdocs/core/modules/stocktransfer/doc/pdf_eagle.modules.php

@@ -164,17 +164,18 @@ public function __construct(DoliDB $db)
 		}*/
 	}
 
+
 	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
 	/**
 	 *	Function to build pdf onto disk
 	 *
 	 *	@param		StockTransfer	$object				Object StockTransfer to generate (or id if old method)
-	 *	@param		Translate		$outputlangs		Lang output object
+	 *  @param		Translate		$outputlangs		Lang output object
 	 *  @param		string			$srctemplatepath	Full path of source filename for generator using a template file
 	 *  @param		int<0,1>		$hidedetails		Do not show line details
 	 *  @param		int<0,1>		$hidedesc			Do not show desc
 	 *  @param		int<0,1>		$hideref			Do not show ref
-	 *  @return     int<-1,1>      	    				1=OK, 0=KO
+	 *  @return		int<-1,1>							1 if OK, <=0 if KO
 	 */
 	public function write_file($object, $outputlangs, $srctemplatepath = '', $hidedetails = 0, $hidedesc = 0, $hideref = 0)
 	{