Add va_end and returns to variadic functions (#950)

src/code/fault_drawer.c

@@ -272,6 +272,8 @@ void FaultDrawer_Printf(const char* fmt, ...) {
     va_start(args, fmt);
 
     FaultDrawer_VPrintf(fmt, args);
+
+    va_end(args);
 }
 
 void FaultDrawer_DrawText(s32 x, s32 y, const char* fmt, ...) {
@@ -280,6 +282,8 @@ void FaultDrawer_DrawText(s32 x, s32 y, const char* fmt, ...) {
 
     FaultDrawer_SetCursor(x, y);
     FaultDrawer_VPrintf(fmt, args);
+    
+    va_end(args);
 }
 
 void FaultDrawer_SetDrawerFB(void* fb, u16 w, u16 h) {

src/code/gfxprint.c

@@ -357,8 +357,13 @@ s32 GfxPrint_VPrintf(GfxPrint* this, const char* fmt, va_list args) {
 }
 
 s32 GfxPrint_Printf(GfxPrint* this, const char* fmt, ...) {
+    s32 ret;
     va_list args;
     va_start(args, fmt);
 
-    return GfxPrint_VPrintf(this, fmt, args);
+    ret = GfxPrint_VPrintf(this, fmt, args);
+
+    va_end(args);
+
+    return ret;
 }

src/code/printutils.c

@@ -5,8 +5,13 @@ s32 PrintUtils_VPrintf(PrintCallback* pfn, const char* fmt, va_list args) {
 }
 
 s32 PrintUtils_Printf(PrintCallback* pfn, const char* fmt, ...) {
+    s32 ret;
     va_list args;
     va_start(args, fmt);
 
-    return PrintUtils_VPrintf(pfn, fmt, args);
+    ret = PrintUtils_VPrintf(pfn, fmt, args);
+
+    va_end(args);
+
+    return ret;
 }