Debugger: Fix data copy issue.

- B_PRIx8 unfortunately doesn't necessarily strictly stay within the bounds
  of an 8-bit hex constant, so force the size passed to snprintf to make it
  that way.

src/apps/debugger/user_interface/gui/inspector_window/MemoryView.cpp

@@ -802,7 +802,8 @@ MemoryView::_GetSelectedText(BString& text)
 
 	char buffer[32];
 	for (int32 i = 0; i < count; i++) {
-		_GetNextHexBlock(buffer, sizeof(buffer), data);
+		_GetNextHexBlock(buffer, std::min(_GetHexDigitsPerBlock() + 1,
+				(int32)32),	data);
 		data += blockSize;
 		text << buffer;
 		if (i < count - 1)