give an identifier to the app_bundle itself

Language Pack did not seem to pick a decent default value for that

Change-Id: I567f24882e16533e10d8ba91b777ad91dc507b87
Reviewed-on: https://gerrit.libreoffice.org/7485Tested-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>

solenv/bin/macosx-codesign-app-bundle

@@ -19,7 +19,7 @@ for V in \
     fi
 done
 
-APP_BUNDLE=$1
+APP_BUNDLE="$1"
 
 # Sign dylibs
 #
@@ -72,6 +72,6 @@ if test "$ENABLE_MACOSX_SANDBOX" = "TRUE"; then
     entitlements="--entitlements $BUILDDIR/lo.xcent"
 fi
 
-codesign --force --verbose --sign "$MACOSX_CODESIGNING_IDENTITY" $entitlements $APP_BUNDLE
+codesign --force --verbose --identifier="${MACOSX_BUNDLE_IDENTIFIER}.$(basename ${APP_BUNDLE})" --sign "$MACOSX_CODESIGNING_IDENTITY" $entitlements $APP_BUNDLE
 
 exit 0