Updated source to match SDL function prototype style

src/thread/windows/SDL_syscond_cv.c

@@ -218,8 +218,7 @@ static const SDL_cond_impl_t SDL_cond_impl_generic = {
     &SDL_CondWaitTimeout_generic,
 };
 
-SDL_cond *
-SDL_CreateCond(void)
+SDL_cond *SDL_CreateCond(void)
 {
     if (SDL_cond_impl_active.Create == NULL) {
         /* Default to generic implementation, works with all mutex implementations */

src/thread/windows/SDL_sysmutex.c

@@ -243,8 +243,7 @@ static const SDL_mutex_impl_t SDL_mutex_impl_cs = {
  * Runtime selection and redirection
  */
 
-SDL_mutex *
-SDL_CreateMutex(void)
+SDL_mutex *SDL_CreateMutex(void)
 {
     if (SDL_mutex_impl_active.Create == NULL) {
         /* Default to fallback implementation */

src/thread/windows/SDL_syssem.c

@@ -377,8 +377,7 @@ static const SDL_sem_impl_t SDL_sem_impl_kern = {
  * Runtime selection and redirection
  */
 
-SDL_sem *
-SDL_CreateSemaphore(Uint32 initial_value)
+SDL_sem *SDL_CreateSemaphore(Uint32 initial_value)
 {
     if (SDL_sem_impl_active.Create == NULL) {
         /* Default to fallback implementation */
@@ -436,8 +435,7 @@ int SDL_SemWait(SDL_sem *sem)
     return SDL_sem_impl_active.Wait(sem);
 }
 
-Uint32
-SDL_SemValue(SDL_sem *sem)
+Uint32 SDL_SemValue(SDL_sem *sem)
 {
     return SDL_sem_impl_active.Value(sem);
 }

src/thread/windows/SDL_systhread.c

@@ -164,8 +164,7 @@ void SDL_SYS_SetupThread(const char *name)
     }
 }
 
-SDL_threadID
-SDL_ThreadID(void)
+SDL_threadID SDL_ThreadID(void)
 {
     return (SDL_threadID)GetCurrentThreadId();
 }

src/thread/windows/SDL_systls.c

@@ -43,8 +43,7 @@
 static DWORD thread_local_storage = TLS_OUT_OF_INDEXES;
 static SDL_bool generic_local_storage = SDL_FALSE;
 
-SDL_TLSData *
-SDL_SYS_GetTLSData(void)
+SDL_TLSData *SDL_SYS_GetTLSData(void)
 {
     if (thread_local_storage == TLS_OUT_OF_INDEXES && !generic_local_storage) {
         static SDL_SpinLock lock;