ports/126876: Makefile.xpi's xpi-gen gets the wrong id sometimes

[Lapo Luchini]

>Number:         126876
>Category:       ports
>Synopsis:       Makefile.xpi's xpi-gen gets the wrong id sometimes
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Aug 27 07:30:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Lapo Luchini
>Release:        FreeBSD 6.3-PRERELEASE amd64
>Organization:
>Environment:
System: FreeBSD motoko.lapo.it 6.3-PRERELEASE FreeBSD 6.3-PRERELEASE #8: Thu Dec 13 09:33:49 CET 2007 root at motoko.lapo.it:/usr/obj/usr/src/sys/MOTOKO amd64

>Description:

ports/www/xpi-adblock/Makefile.xpi's xpi-gen target gets the first id 
from install.rdf, which is not always the correct one.

>How-To-Repeat:

cd /usr/ports/www/xpi-stumbleupon
make xpi-gen

produces:       {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
should produce: {AE93811A-5C9A-4d34-8462-F7B864FC4696}

>Fix:

The grep at line 195 can't solve the problem by itself, because the tag 
may be split over multiple line, so it's necessary to use sed or awk to 
choose the correct id.
>Release-Note:
>Audit-Trail:
>Unformatted: