Eek, it is hard to get the right path to the .app that is being built

Temporary directory name upon temporary directory name. Just in
case. When in doubt, add one more temporary directory name layer.

workdir/unxmacxx.pro/installation/LibreOffice_Dev/dmg/install/en-US_inprogress_temp.62979/./LibreOfficeDev_4.1.0.0.alpha0_MacOS_x86-64/LibreOfficeDev.app

Couldn't quickly figure out how to construct the
"LibreOfficeDev_4.1.0.0.alpha0_MacOS_x86-64" part so just use a
wildcard * for that for now;) There won't be any other directories
there anyway, as far as I know.

Change-Id: If950d4cdfe3f7b0663f1b6fbd62185ca8284dd7f

solenv/bin/modules/installer/simplepackage.pm

@@ -435,7 +435,7 @@ sub create_package
                 # participate in the signing and their validity can be
                 # guaranteed.
 
-                $systemcall = "codesign --sign $ENV{'MACOSX_CODESIGNING_IDENTITY'} --force -v -v -v $localtempdir/$folder/$volume_name_classic_app.app";
+                $systemcall = "codesign --sign $ENV{'MACOSX_CODESIGNING_IDENTITY'} --force -v -v -v $localtempdir/$folder/*/$volume_name_classic_app.app";
                 print "... $systemcall ...\n";
                 my $returnvalue = system($systemcall);
                 $infoline = "Systemcall: $systemcall\n";