treewide: get rid of remaing getopt/getopt_long stuff

src/shared/parse-argument.c

@@ -31,7 +31,7 @@ int parse_boolean_argument(const char *optname, const char *s, bool *ret) {
                         *ret = r;
                 return r;
         } else {
-                /* s may be NULL. This is controlled by getopt_long() parameters. */
+                /* s may be NULL. This is controlled by OPTION flags. */
                 if (ret)
                         *ret = true;
                 return true;
@@ -42,10 +42,10 @@ int parse_tristate_argument_with_auto(const char *optname, const char *s, int *r
         int r;
 
         assert(optname);
-        assert(s); /* We refuse NULL optarg here, since that would be ambiguous on cmdline:
-                      for --enable-a[=BOOL], --enable-a is intuitively interpreted as true rather than "auto"
-                      (parse_boolean_argument() does exactly that). IOW, tristate options should require
-                      arguments. */
+        assert(s); /* We refuse NULL arg here, since that would be ambiguous on cmdline: for
+                    * --enable-a[=BOOL], --enable-a is intuitively interpreted as true rather than "auto"
+                    * (parse_boolean_argument() does exactly that). IOW, tristate options should require
+                    * arguments. */
 
         r = parse_tristate_full(s, "auto", ret);
         if (r < 0)