Simplify SRT file path construction with suggestion from Hoikas

Sources/Plasma/PubUtilLib/plAudioCore/plSrtFileReader.cpp

@@ -54,24 +54,17 @@ static const std::regex timingsRegex("^(\\d{2}):(\\d{2}):(\\d{2}),(\\d{3}) --> (
 
 bool plSrtFileReader::ReadFile()
 {
-	char path[MAX_PATH];
+	wchar path[MAX_PATH];
-
+	StrPrintf(path, arrsize(path), L"sfx\\%S", fAudioFileName);
-	if (strchr(fAudioFileName, '\\') != nil)
+	PathSetExtension(path, path, L".sub", arrsize(path));
-		strcpy(path, fAudioFileName);
-	else
-		sprintf(path, "sfx\\%s", fAudioFileName);
-
-	wchar srtPathUnicode[MAX_PATH];
-	StrToUnicode(srtPathUnicode, path, arrsize(srtPathUnicode));
-	PathSetExtension(srtPathUnicode, srtPathUnicode, L".sub", arrsize(srtPathUnicode));
 	
-	if (PathDoesFileExist(srtPathUnicode)) {
+	if (PathDoesFileExist(path)) {
 		// read sets of SRT data until end of file
 		hsUNIXStream srtFileStream;
 
 		// if file exists and was opened successfully
-		if (srtFileStream.Open(srtPathUnicode, L"r")) {
+		if (srtFileStream.Open(path, L"r")) {
-			plStatusLog::AddLineS("audio.log", "Successfully opened subtitle file {}", srtPathUnicode);
+			plStatusLog::AddLineS("audio.log", "Successfully opened subtitle file {}", path);
 
 			uint32_t subtitleNumber = 0;
 			uint32_t subtitleStartTimeMs = 0;