Merge pull request #1129 from FHenry/3.4

Fix bug export contact extrafields

htdocs/core/modules/modSociete.class.php

@@ -329,6 +329,7 @@ class modSociete extends DolibarrModules
 		$this->export_sql_end[$r]  =' FROM '.MAIN_DB_PREFIX.'socpeople as c';
 		$this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'societe as s ON c.fk_soc = s.rowid';
 		$this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'c_pays as p ON c.fk_pays = p.rowid';
+		$this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'socpeople_extrafields as extra ON extra.fk_object = c.rowid';
 		$this->export_sql_end[$r] .=' WHERE c.entity IN ('.getEntity("societe", 1).')';