fix code style if trivial one line difference

src/systemcmds/tests/test_jig_voltages.c

@@ -162,7 +162,7 @@ int test_jig_voltages(int argc, char *argv[])
 
 errout_with_dev:
 
-	if (fd != 0) close(fd);
+	if (fd != 0) { close(fd); }
 
 	return ret;
 }

src/systemcmds/tests/test_rc.c

@@ -126,7 +126,7 @@ int test_rc(int argc, char *argv[])
 						warnx("TIMEOUT, less than 10 Hz updates");
 						(void)close(_rc_sub);
 						return ERROR;
-					} 
+					}
 
 				} else {
 					/* key pressed, bye bye */

src/systemcmds/tests/test_uart_send.c

@@ -95,7 +95,7 @@ int test_uart_send(int argc, char *argv[])
 	/* input handling */
 	char *uart_name = "/dev/ttyS3";
 
-	if (argc > 1) uart_name = argv[1];
+	if (argc > 1) { uart_name = argv[1]; }
 
 	/* assuming NuttShell is on UART1 (/dev/ttyS0) */
 	int test_uart = open(uart_name, O_RDWR | O_NONBLOCK | O_NOCTTY); //

src/systemcmds/usb_connected/usb_connected.c

@@ -52,5 +52,5 @@ __EXPORT int usb_connected_main(int argc, char *argv[]);
 int
 usb_connected_main(int argc, char *argv[])
 {
-	return stm32_gpioread(GPIO_OTGFS_VBUS) ? 0:1;
+	return stm32_gpioread(GPIO_OTGFS_VBUS) ? 0 : 1;
 }