buffer fixes found via cppcheck/tetsuo--

Source/Core/Core/Src/HW/DSPHLE/UCodes/UCode_Zelda_Voice.cpp

@@ -214,7 +214,6 @@ void CUCode_Zelda::RenderVoice_PCM8(ZeldaVoicePB &PB, s16 *_Buffer, int _Size)
 template <typename T> 
 void PrintObject(const T &Obj) 
 {
-	char byte[2] = {0};
 	std::stringstream ss;
 	u8 *o = (u8 *)&Obj;
 
@@ -223,16 +222,17 @@ void PrintObject(const T &Obj)
 	CompileTimeAssert<sizeof(ZeldaVoicePB) == 0x180> ensure_zpb_size_correct;
 	(void)ensure_zpb_size_correct;
 
+	ss << std::hex;
 	for (size_t i = 0; i < sizeof(T); i++)
 	{
-		if((i > 0) && ((i & 1) == 0))
-			ss << " ";
-
-		sprintf(byte, "%02X", Common::swap16(o[i]));
-		ss << byte;
+		if((i & 1) == 0)
+			ss << ' ';
+		ss.width(2);
+		ss.fill('0');
+		ss << Common::swap16(o[i]);
 	}
 
-	DEBUG_LOG(DSPHLE, "AFC PB: %s", ss.str().c_str());
+	DEBUG_LOG(DSPHLE, "AFC PB:%s", ss.str().c_str());
 }
 
 void CUCode_Zelda::RenderVoice_AFC(ZeldaVoicePB &PB, s16 *_Buffer, int _Size)

Source/Core/Core/Src/PowerPC/JitCommon/JitBase.cpp

@@ -2,6 +2,8 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
+#include <sstream>
+
 #include "JitBase.h"
 #include "PowerPCDisasm.h"
 #include "disasm.h"
@@ -54,14 +56,14 @@ void LogGeneratedX86(int size, PPCAnalyst::CodeBuffer *code_buffer, const u8 *no
 
 	if (b->codeSize <= 250)
 	{
-		char x86code[500] = "";		
+		std::stringstream ss;
+		ss << std::hex;
 		for (u8 i = 0; i <= b->codeSize; i++)
 		{
-			char opcHex[2] = "";
-			u8 opc = *(normalEntry + i);
-			sprintf(opcHex, "%02x", opc);
-			strncat(x86code, opcHex, 2);		
+			ss.width(2);
+			ss.fill('0');
+			ss << (u32)*(normalEntry + i);
 		}
-		DEBUG_LOG(DYNA_REC,"IR_X86 bin: %s\n\n\n", x86code);
+		DEBUG_LOG(DYNA_REC,"IR_X86 bin: %s\n\n\n", ss.str().c_str());
 	}
 }