Updated arguments handling.

Author: AlynxZhou

srcs/flipclock.c

@@ -883,14 +883,14 @@ void flipclock_print_help(struct flipclock *app, char program_name[])
 	printf("\t%cp <HWND>\t(Windows only) Preview in given window.\n",
 	       OPT_START);
 #endif
-	printf("\t%cS\t\tShow second.\n", OPT_START);
+	printf("\t%c3\t\tShow second.\n", OPT_START);
 	printf("\t%cw\t\tRun as a window instead of fullscreen.\n", OPT_START);
 	printf("\t%ct <12|24>\tToggle 12-hour clock format (AM/PM) "
 	       "or 24-hour clock format.\n",
 	       OPT_START);
 	printf("\t%cf <font>\tLoad custom font path.\n", OPT_START);
 	printf("Press Esc or q to exit.\n");
-	printf("Press s to toggle second display.\n");
+	printf("Press s to toggle second.\n");
 	printf("Press f to toggle fullscreen.\n");
 	printf("Press t to toggle 12/24-hour clock format.\n");
 	printf("Using configuration file %s.\n", app->conf_path);

srcs/main.c

@@ -26,10 +26,14 @@ int main(int argc, char *argv[])
 #if !defined(__ANDROID__)
 	// Android don't need conf and arguments.
 	flipclock_load_conf(app);
+#	if defined(__DEBUG__)
+	for (int i = 0; i < argc; ++i)
+		LOG_DEBUG("argv[%d]: %s\n", i, argv[i]);
+#	endif
 #	if defined(_WIN32)
-	char OPT_STRING[] = "hvscp:Swt:f:";
+	char OPT_STRING[] = "hvscp:3wt:f:";
 #	else
-	char OPT_STRING[] = "hvSwt:f:";
+	char OPT_STRING[] = "hv3wt:f:";
 #	endif
 	int opt = 0;
 	bool exit_after_argument = false;
@@ -77,14 +81,21 @@ int main(int argc, char *argv[])
 			 * typedef void *PVOID;
 			 * typedef PVOID HANDLE;
 			 * typedef HANDLE HWND;
-			 * So it's safe to treat it as a unsigned int.
+			 * So it's safe to treat it as a unsigned int, even
+			 * though silly MSVC will complain. If MSVC is unhappy,
+			 * why not tell us how to handle it correctly?
 			 * Seems Windows print HWND as a decimal number,
 			 * so %p with scanf() is not suitable here.
 			 */
 			app->preview_window = strtoul(argopt, NULL, 0);
 			break;
 #	endif
-		case 'S':
+		/**
+		 * Windows taken `/s` for screensaver, and if you run `.scr`
+		 * file from explorer, it will add `/S`! What a silly behavior,
+		 * so we cannot use those chars.
+		 */
+		case '3':
 			app->show_second = true;
 			break;
 		case 'w':