[base] Buffer: printf() variants return number of bytes written instead of *this, to match libc's printf variants a little more
[base] Buffer: printf() variants return number of bytes written instead of *this, to match libc's printf variants a little more

christianparpart/x0,xzero/x0,christianparpart/x0,christianparpart/x0,christianparpart/x0,xzero/x0,christianparpart/x0,xzero/x0,xzero/x0,xzero/x0,christianparpart/x0,xzero/x0,christianparpart/x0