pbio/angle: Make short duration match trajectory.
// Millidegrees per rotation
#define MDEG_PER_ROT (360000)
-// Maximum number of rotations that still fit in a 31 bit millidegree value.
-#define SMALL_ROT_MAX (INT32_MAX / MDEG_PER_ROT - 1)
+// Maximum number of rotations that still fit in a 30 bit millidegree value.
+#define SMALL_ROT_MAX (INT32_MAX / 2 / MDEG_PER_ROT - 1)
void pbio_angle_flush(pbio_angle_t *a) {
while (a->millidegrees > MDEG_PER_ROT) {
