update code toward php8 compliance

htdocs/core/modules/expedition/doc/pdf_espadon.modules.php

@@ -134,10 +134,10 @@ class pdf_espadon extends ModelePdfExpedition
 		$this->page_largeur = $formatarray['width'];
 		$this->page_hauteur = $formatarray['height'];
 		$this->format = array($this->page_largeur, $this->page_hauteur);
-		$this->marge_gauche = isset($conf->global->MAIN_PDF_MARGIN_LEFT) ? $conf->global->MAIN_PDF_MARGIN_LEFT : 10;
-		$this->marge_droite = isset($conf->global->MAIN_PDF_MARGIN_RIGHT) ? $conf->global->MAIN_PDF_MARGIN_RIGHT : 10;
-		$this->marge_haute = isset($conf->global->MAIN_PDF_MARGIN_TOP) ? $conf->global->MAIN_PDF_MARGIN_TOP : 10;
-		$this->marge_basse = isset($conf->global->MAIN_PDF_MARGIN_BOTTOM) ? $conf->global->MAIN_PDF_MARGIN_BOTTOM : 10;
+		$this->marge_gauche = isset($conf->global->MAIN_PDF_MARGIN_LEFT) ? getDolGlobalInt('MAIN_PDF_MARGIN_LEFT') : 10;
+		$this->marge_droite = isset($conf->global->MAIN_PDF_MARGIN_RIGHT) ? getDolGlobalInt('MAIN_PDF_MARGIN_RIGHT') : 10;
+		$this->marge_haute = isset($conf->global->MAIN_PDF_MARGIN_TOP) ? getDolGlobalInt('MAIN_PDF_MARGIN_TOP') : 10;
+		$this->marge_basse = isset($conf->global->MAIN_PDF_MARGIN_BOTTOM) ? getDolGlobalInt('MAIN_PDF_MARGIN_BOTTOM') : 10;
 
 		$this->option_logo = 1; // Display logo
 		$this->option_draft_watermark = 1; // Support add of a watermark on drafts