(ldap-search-internal): Tweak URL regexp.

lisp/net/ldap.el

@@ -584,7 +584,9 @@ an alist of attribute/value pairs."
 					       (end-of-line)
 					       (point))))
 	  (forward-line 1)
-	  (while (looking-at "^\\(\\w*\\)\\(;\\w*\\)?[=:\t ]+\\(<[\t ]*file://\\)\\(.*\\)$")
+          (while (looking-at "^\\([A-Za-z][-A-Za-z0-9]*\
+\\|[0-9]+\\(?:\\.[0-9]+\\)*\\)\\(;[-A-Za-z0-9]+\\)*[=:\t ]+\
+\\(<[\t ]*file://\\)\\(.*\\)$")
 	    (setq name (match-string 1)
 		  value (match-string 4))
             ;; Need to handle file:///D:/... as generated by OpenLDAP