compdcm_mpu9150 example bug, please fix

Values between 0.0 and -1.0 are being displayed with incorrect sign.

Truncating float values between -1.0 and 1.0 results in a zero.

This results in all values between -1.0 and 0.0 losing their negative sign.

Please confirm and fix.

            for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)
            {
                //
                // Conver float value to a integer truncating the decimal part.
                //
                i32IPart[ui32Idx] = (int32_t) pfData[ui32Idx];

                //
                // Multiply by 1000 to preserve first three decimal values.
                // Truncates at the 3rd decimal place.
                //
                i32FPart[ui32Idx] = (int32_t) (pfData[ui32Idx] * 1000.0f);

                //
                // Subtract off the integer part from this newly formed decimal
                // part.
                //
                i32FPart[ui32Idx] = i32FPart[ui32Idx] -
                                    (i32IPart[ui32Idx] * 1000);

                //
                // make the decimal part a positive number for display.
                //
                if(i32FPart[ui32Idx] < 0)
                {
                    i32FPart[ui32Idx] *= -1;
                }
            }