tools: gpio: Small updates for output format

Use %2d for the GPIO line number. This should align the results
horziontally for most gpio chips.

The GPIO label uses quotes for real values. For GPIO names this is
currently missing. The patch adds the missing quote.
Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

tools/gpio/lsgpio.c

@@ -111,9 +111,9 @@ int list_device(const char *device_name)
 			perror("Failed to issue LINEINFO IOCTL\n");
 			goto exit_close_error;
 		}
-		fprintf(stdout, "\tline %d:", linfo.line_offset);
+		fprintf(stdout, "\tline %2d:", linfo.line_offset);
 		if (linfo.name[0])
-			fprintf(stdout, " %s", linfo.name);
+			fprintf(stdout, " \"%s\"", linfo.name);
 		else
 			fprintf(stdout, " unnamed");
 		if (linfo.label[0])