Resolves: #i124825# secure usage of object ID...

in preparation of names for line start/end geometry

(cherry picked from commit 246d1ce469c155b81743cb6eaa065da2b19d7dcc)

Conflicts:
	filter/source/svg/svgwriter.cxx

Change-Id: I1a267b33f87cbb935c783670a51853832d483b1a