Merge branch '6.0' of git@github.com:Dolibarr/dolibarr.git into 7.0

Conflicts:
	htdocs/core/class/utils.class.php

htdocs/core/class/utils.class.php

@@ -291,6 +291,7 @@ class Utils
 				$ok=0;
 				dol_syslog("Run command ".$fullcommandcrypted);
 				$handlein = popen($fullcommandclear, 'r');
+				if ($handlein) {
 					$i=0;
 					while (!feof($handlein))
 					{
@@ -303,6 +304,7 @@ class Utils
 						elseif (preg_match('/'.preg_quote('SET SQL_NOTES=@OLD_SQL_NOTES').'/i',$read)) $ok=1;
 					}
 					pclose($handlein);
+				}
 
 				if ($compression == 'none') fclose($handle);
 				if ($compression == 'gz')   gzclose($handle);