perl: changed default vendorprefix ('opt' -> 'usr')

Note:

Actually we should change our default perl handling that all perl packages
are going to be installed into 'vendor_perl' because according to:

http://search.cpan.org/dist/perl/INSTALL#Installation_Directories

this is the right place for distributions which build binary packages of
perl add-on modules.

perl/perl/config.in

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../perl/config.in
-# Copyright (C) 2010 The OpenSDE Project
+# Copyright (C) 2010 - 2011 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -19,7 +19,7 @@ then
 	menu_begin MENU_PKG_PERL5 'Perl 5 Package Options'
 		text 'Host name' SDECFG_PKG_PERL5_HOST_NAME "localhost"
 		text 'Site prefix' SDECFG_PKG_PERL5_SITE_PREFIX "usr"
-		text 'Vendor prefix' SDECFG_PKG_PERL5_VENDOR_PREFIX "opt"
+		text 'Vendor prefix' SDECFG_PKG_PERL5_VENDOR_PREFIX "usr"
 		bool 'Use threads' SDECFG_PKG_PERL5_THREADS 0
 	menu_end
 fi