editors/openoffice-4: fix crash in fontconfig

Ensure default substitutions on patterns

This is requested by the documentation of function FcFontMatch().

Addresses bug #128583.

[cherry-picked from upstream 96cc864ad79ef0ed2b9769f074673a55e4056b44]
[converted to FreeBSD ports patch by Don Lewis <truckman@FreeBSD.org]
[Skipping PORTREVSION bump, the next commit will be a version upgrade]

PR:		248161
MFH:		2024Q1

editors/openoffice-4/files/patch-vcl_unx_generic_fontmanager_fontconfig.cxx

@@ -0,0 +1,10 @@
+--- vcl/unx/generic/fontmanager/fontconfig.cxx.orig	2020-10-06 14:16:35 UTC
++++ vcl/unx/generic/fontmanager/fontconfig.cxx
+@@ -456,6 +456,7 @@ void FontCfgWrapper::addFontSet( FcSetName eSetName )
+ 		if( m_nFcVersion > 20400 ) // #i115204# avoid trouble with old FC versions
+ 		{
+ 			FcPattern* pTestPattern = FcPatternDuplicate( pOrigPattern );
++            FcDefaultSubstitute( pTestPattern );
+ 			FcPatternAddBool( pTestPattern, FC_OUTLINE, FcTrue );
+ 			// TODO: ignore all attributes that are not interesting for finding dupes
+ 			//       e.g. by using pattern->ImplFontAttr->pattern conversion