Clear command line arguments after parsing

Fixes #442

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/finit.c

@@ -623,6 +623,12 @@ int main(int argc, char *argv[])
 	 */
 	conf_parse_cmdline(argc, argv);
 
+	/*
+	 * Clear command line arguments for ps display, issue #442
+	 */
+	for (int i = 1; i < argc; i++)
+		memset(argv[i], 0, strlen(argv[i]));
+
 	/*
 	 * Figure out system console(s) and call log_init() to set
 	 * correct log level, possibly finit.debug enabled.