Clean trailing whitespace from all files.

test/data/headers.php

@@ -4,16 +4,16 @@ header( "Sample-Header: Hello World" );
 
 $headers = array();
 
-foreach( $_SERVER as $key => $value ) { 
-	
-	if ( substr( $key , 0 , 5 ) == "HTTP_" ) { 
-		
+foreach( $_SERVER as $key => $value ) {
+
+	if ( substr( $key , 0 , 5 ) == "HTTP_" ) {
+
 		$key = str_replace( "_" , "-" , substr( $key , 5) );
 		$headers[ $key ] = $value;
 
 	}
-	
-} 
+
+}
 
 foreach( explode( "_" , $_GET[ "keys" ] ) as $key ) {
 	echo "$key: " . $headers[ strtoupper( $key ) ] . "\n";