uvalue: Fix runtime error when converting a pointer to an UValue.
uvalue: Fix runtime error when converting a pointer to an UValue.

	* sdk-remote/src/libuvalue/uvalue-common.cc: Escape '%' in
	format.

aldebaran/urbi,aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,aldebaran/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi