remove trailing whitespaces

examples/blinky-stm32h747i-disco.rs

@@ -1,5 +1,5 @@
 #![deny(warnings)] // This code runs on stm32h747i-disco and does not use example! macro.
-#![allow(unused_macros)] 
+#![allow(unused_macros)]
 #![no_main]
 #![no_std]
 
@@ -16,45 +16,45 @@ fn main() -> ! {
  utilities::logger::init();
  let cp = cortex_m::Peripherals::take().unwrap();
  let dp = pac::Peripherals::take().unwrap();
- 
+
  // Constrain and Freeze power
  info!("Setup PWR... ");
  let pwr = dp.PWR.constrain();
  // let pwrcfg = example_power!(pwr).freeze();
  let pwrcfg = pwr.smps().freeze(); // This code works normally on stm32h747i-disco.
- 
+
  // Constrain and Freeze clock
  // RCC (Reset and Clock Control)
  info!("Setup RCC... ");
  let rcc = dp.RCC.constrain();
- 
+
  // CCDR (Core Clock Distribution and Reset)
  // link: https://docs.rs/stm32h7xx-hal/latest/stm32h7xx_hal/rcc/struct.Ccdr.html
  let ccdr = rcc.sys_ck(100.MHz()).freeze(pwrcfg, &dp.SYSCFG);
- 
+
  info!("");
  info!("stm32h7xx-hal example - Blinky");
  info!("");
- 
+
  let gpioi = dp.GPIOI.split(ccdr.peripheral.GPIOI); // <= GPIO settings for LEDs
- 
+
  // Configure gpio pins as output.
  let mut led1 = gpioi.pi12.into_push_pull_output(); // PI12 for LED1
  let mut led2 = gpioi.pi13.into_push_pull_output(); // PI13 for LED2
  let mut led3 = gpioi.pi14.into_push_pull_output(); // PI14 for LED3
  let mut led4 = gpioi.pi15.into_push_pull_output(); // PI15 for LED4
- 
+
  // Get the delay provider.
  let mut delay = cp.SYST.delay(ccdr.clocks);
- 
+
  loop {
  loop {
  led1.set_high();
  led2.set_low();
  led3.set_high();
  led4.set_low();
  delay.delay_ms(500_u16);
- 
+
  led1.set_low();
  led2.set_high();
  led3.set_low();