LDAP: remove restriction from group names to be in line with core behaviour again

apps/user_ldap/lib/access.php

@@ -317,7 +317,7 @@ abstract class Access {
 			}
 			$ldapname = $ldapname[0];
 		}
-		$intname = $isUser ? $this->sanitizeUsername($uuid) : $this->sanitizeUsername($ldapname);
+		$intname = $isUser ? $this->sanitizeUsername($uuid) : $ldapname;
 
 		//a new user/group! Add it only if it doesn't conflict with other backend's users or existing groups
 		//disabling Cache is required to avoid that the new user is cached as not-existing in fooExists check