Update doctokenizer.l

Removed ':' from the end of the section title for an RCS tag - it was inconsistent with sections created using other commands.
Merge branch 'patch-1' of https://github.com/rkawulak/doxygen into rkawulak-patch-1

Conflicts:
	src/doctokenizer.l
Merge branch 'master' of github.com:doxygen/doxygen