Cleanup add brace (#6545)

* Add braces after if conditions

* More add braces after if conditions

* Add braces after while() conditions

* Fix compilation because of macro being modified

* Add braces to for loop

* Add braces after if/goto

* Move comments up

* Remove extra () in the 'return ...;' statements

* More remove extra () in the 'return ...;' statements

* More remove extra () in the 'return ...;' statements after merge

* Fix inconsistent patterns are xxx == NULL vs !xxx

* More "{}" for "if() break;"  and "if() continue;"

* More "{}" after if() short statement

* More "{}" after "if () return;" statement

* More fix inconsistent patterns are xxx == NULL vs !xxx

* Revert some modificaion on SDL_RLEaccel.c

* SDL_RLEaccel: no short statement

* Cleanup 'if' where the bracket is in a new line

* Cleanup 'while' where the bracket is in a new line

* Cleanup 'for' where the bracket is in a new line

* Cleanup 'else' where the bracket is in a new line

(cherry picked from commit 6a2200823c to reduce conflicts merging between SDL2 and SDL3)

test/testautomation.c

@@ -42,7 +42,7 @@ main(int argc, char *argv[])
 
     /* Initialize test framework */
     state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
-    if (!state) {
+    if (state == NULL) {
         return 1;
     }
 
@@ -56,23 +56,22 @@ main(int argc, char *argv[])
             if (SDL_strcasecmp(argv[i], "--iterations") == 0) {
                 if (argv[i + 1]) {
                     testIterations = SDL_atoi(argv[i + 1]);
-                    if (testIterations < 1) testIterations = 1;
+                    if (testIterations < 1) {
+                        testIterations = 1;
+                    }
                     consumed = 2;
                 }
-            }
-            else if (SDL_strcasecmp(argv[i], "--execKey") == 0) {
+            } else if (SDL_strcasecmp(argv[i], "--execKey") == 0) {
                 if (argv[i + 1]) {
                     SDL_sscanf(argv[i + 1], "%"SDL_PRIu64, &userExecKey);
                     consumed = 2;
                 }
-            }
-            else if (SDL_strcasecmp(argv[i], "--seed") == 0) {
+            } else if (SDL_strcasecmp(argv[i], "--seed") == 0) {
                 if (argv[i + 1]) {
                     userRunSeed = SDL_strdup(argv[i + 1]);
                     consumed = 2;
                 }
-            }
-            else if (SDL_strcasecmp(argv[i], "--filter") == 0) {
+            } else if (SDL_strcasecmp(argv[i], "--filter") == 0) {
                 if (argv[i + 1]) {
                     filter = SDL_strdup(argv[i + 1]);
                     consumed = 2;
@@ -105,7 +104,7 @@ main(int argc, char *argv[])
 
     /* Empty event queue */
     done = 0;
-    for (i=0; i<100; i++)  {
+    for (i=0; i<100; i++) {
       while (SDL_PollEvent(&event)) {
         SDLTest_CommonEvent(state, &event, &done);
       }
@@ -118,7 +117,7 @@ main(int argc, char *argv[])
 
     /* Shutdown everything */
     quit(result);
-    return(result);
+    return result;
 }
 
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