Standardize formatting of example code

- Use the standard "Arduino sketch style" formatting.
- Move the print to setup(), so it only happens once.

Author: per1234

Language/Functions/Bits and Bytes/bitClear.adoc

@@ -52,15 +52,18 @@ Prints the output of `bitClear(x,n)` on two given integers. The binary represent
 
 [source,arduino]
 ----
-void setup() 
-{
-Serial.begin(9600); 
+void setup() {
+  Serial.begin(9600);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+  int x = 6;
+  int n = 1;
+  Serial.print(bitClear(x, n)); // print the output of bitClear(x,n)
 }
 
-void loop() 
-{
-int x = 6; int n = 1;        //setting the value of x and n
-Serial.print(bitClear(x,n)); //printing the output of the bitClear(x,n)
+void loop() {
 }
 ----
 [%hardbreaks]