Fix astyle issue

Author: fpistm

cores/arduino/stm32/usb/usbd_if.c

@@ -104,7 +104,7 @@
   #define USBD_PULLUP_CONTROL_PINNAME digitalPinToPinName(USBD_DETACH_PIN)
   #define USBD_ATTACH_LEVEL !(USBD_DETACH_LEVEL)
 #elif !defined(USBD_HAVE_INTERNAL_PULLUPS) || defined(USBD_FIXED_PULLUP)
- /* When no USB attach and detach pins were defined, and there are also
+  /* When no USB attach and detach pins were defined, and there are also
   * no internal pullups, assume there is a fixed external pullup and apply
   * the D+ trick. Also do this when there are internal *and* external
   * pulups (which is a hardware bug, but there are boards out there with