Update www/php-http to 2.5.6.

2.5.6
* Fix php-bug #71719: Buffer overflow in HTTP url parsing
  functions
* Fix gh-issue #28: Possible null pointer dereference
  in php_http_url_mod()
* Fix gh-issue #22: Fix PHP5 config.w32
* Fix gh-issue #20: setSslOptions notice with curl 7.43

2.5.5
* Fixed gh-issue #16: No Content-Length header with empty
  POST requests

2.5.3
* Fixed gh-issue #12: crash on bad url passed
  to http\Message::setRequestUrl()
* The URL parser now fails on empty labels

2.5.2
* Fixed regression with HEAD requests always warning about
  a partial file transfer
+ Added "path_as_is" request option (libcurl >= 7.42)

www/php-http/Makefile

@@ -1,7 +1,7 @@
-# $NetBSD: Makefile,v 1.6 2016/03/05 11:29:39 jperkin Exp $
+# $NetBSD: Makefile,v 1.7 2016/03/12 08:38:39 fhajny Exp $
 
 MODNAME=		http
-PECL_VERSION=		2.5.1
+PECL_VERSION=		2.5.6
 CATEGORIES+=		www
 
 PECL_DISTNAME=		pecl_http-${PECL_VERSION}

www/php-http/distinfo

@@ -1,6 +1,6 @@
-$NetBSD: distinfo,v 1.4 2015/11/04 02:47:22 agc Exp $
+$NetBSD: distinfo,v 1.5 2016/03/12 08:38:39 fhajny Exp $
 
-SHA1 (php-http/pecl_http-2.5.1.tgz) = fb98f6f2c1e83fa78b9bb8317270f2b5252cf76b
-RMD160 (php-http/pecl_http-2.5.1.tgz) = f7b7981518dfdbd8af2815f942b3ea49bd6006fa
-SHA512 (php-http/pecl_http-2.5.1.tgz) = 8cfef0cb6fb5a321804370835e5303ef3b737bd423750a7a19b010c09a56d5b1459cf90428b0b93e3e8e41b75ab00420ffc29c57e98339e55f13d616d4e8e676
-Size (php-http/pecl_http-2.5.1.tgz) = 191275 bytes
+SHA1 (php-http/pecl_http-2.5.6.tgz) = 935a51fe0463497fbcd63755efc89abc6fff4186
+RMD160 (php-http/pecl_http-2.5.6.tgz) = 054adc8c50ed2ed494d70c3ccf154746d2ee3333
+SHA512 (php-http/pecl_http-2.5.6.tgz) = a4ddb2e55b537a240dc79ad38665f9cb79ef56a70f50e0393ca19c36f744c21374ba801e31e68545516c4be98cff65587ee91b2b25f05dd587120afcb87dfe4a
+Size (php-http/pecl_http-2.5.6.tgz) = 200469 bytes