Provide a string::Format function that writes to a span. The snprintf return value is interpreted and returned as a StatusWithSize. Change-Id: Ib7fed684dc333d5feaef85c1bb558cb45e3936bd
Change-Id: Id32c7db700f3fba809d4e90473cbd3e8b8d7ca47
Change-Id: I698260e5dbb82625bb34e8a2c68a683eb569eddc
Change-Id: I0aa7741959b741de082d44afe87786754b572951