get rid of the main() without (void) plague

Author: cirosantilli

c/abs.c

@@ -8,7 +8,7 @@
 
 #include "common.h"
 
-int main() {
+int main(void) {
     assert(abs(-1) == 1);
 
     /*

c/array_designated_initializer.c

@@ -13,7 +13,7 @@
 
 #include "common.h"
 
-int main() {
+int main(void) {
 #if __STDC_VERSION__ >= 199901L
     {
         int is[] = {

c/assert_h.c

@@ -14,7 +14,7 @@
 
 #include "common.h"
 
-int main() {
+int main(void) {
     assert(1);
     return EXIT_SUCCESS;
 }

c/atexit.c

@@ -12,7 +12,7 @@ void atexit_func() {
     printf("atexit\n");
 }
 
-int main() {
+int main(void) {
     atexit(atexit_func);
     return EXIT_SUCCESS;
 }

c/auto.c

@@ -9,7 +9,7 @@
 
 #include "common.h"
 
-int main() {
+int main(void) {
     /* SAME: */
     int i;
     auto int i2;

c/bitfield.c

@@ -6,7 +6,7 @@
 
 #include "common.h"
 
-int main() {
+int main(void) {
     struct S {
         unsigned b1 : 1;
         unsigned b2 : 2;

c/comments.c

@@ -6,7 +6,7 @@
 
 #include "common.h"
 
-int main() {
+int main(void) {
     /* Standard multi line comment. */
     /*
     assert(false);

c/complex_h.c

@@ -40,7 +40,7 @@
 
 #include "common.h"
 
-int main() {
+int main(void) {
 #if __STDC_VERSION__ >= 199901L
 #ifndef __STDC_NO_COMPLEX__
     puts("!__STDC_NO_COMPLEX__");

c/compound_literal.c

@@ -21,7 +21,7 @@ void func_struct_1(struct func_struct s) {
     assert(s.i == 1);
 }
 
-int main() {
+int main(void) {
 #if __STDC_VERSION__ >= 199901L
     /* Compound literals for arrays */
     {

c/compound_struct_literal.c

@@ -8,7 +8,7 @@
 
 #include "common.h"
 
-int main() {
+int main(void) {
     struct S { int i; int j; };
 
     /* Basic example. */