Provide "User-Agent" header in HTTP requests.

SHOUTcast Distributed Network Audio Server disconnects clients that
don't provide a user agent identification.

PR:		84898
Submitted by:	Frank Ruell <stoerte@dreamwarrior.net>

audio/mpg321/Makefile

@@ -7,7 +7,7 @@
 
 PORTNAME=	mpg321
 PORTVERSION=	0.2.10
-PORTREVISION=	4
+PORTREVISION=	5
 CATEGORIES=	audio
 MASTER_SITES=	${MASTER_SITE_SOURCEFORGE}
 MASTER_SITE_SUBDIR=	mpg321

audio/mpg321/files/patch-network.c

@@ -0,0 +1,15 @@
+
+$FreeBSD$
+
+--- network.c.orig
++++ network.c
+@@ -225,7 +225,8 @@
+      * a html page and not the stream */
+     snprintf(http_request, sizeof(http_request), "GET /%s HTTP/1.0\r\n"
+ /*  "User-Agent: Mozilla/2.0 (Win95; I)\r\n" */
+-             "Pragma: no-cache\r\n" "Host: %s\r\n" "Accept: */*\r\n" "\r\n", filename, host);
++             "User-Agent: mpg321/%s\r\n"
++             "Pragma: no-cache\r\n" "Host: %s\r\n" "Accept: */*\r\n" "\r\n", filename, VERSION, host);
+ 
+     send(tcp_sock, http_request, strlen(http_request), 0);
+