0.3.0: converge relibc to upstream 0.6.0 + Red Bear patches

tests/unistd/getopt_long.c

@@ -31,7 +31,7 @@ void runner(int argc, char *argv[]) {
     };
 
     int option_index = 0;
-    char c;
+    int c;
     while((c = getopt_long(argc, argv, ":a", long_options, &option_index)) != -1) {
         switch(c) {
             case 'a':
@@ -55,7 +55,7 @@ void runner(int argc, char *argv[]) {
     }
 }
 
-int main(int argc, const char *argv[]) {
+int main(void) {
     RUN("test", "--test0", "-a");
     RUN("test", "--test1", "-a");
     RUN("test", "--test2", "-a");