Merged in MAINT-8167 (pull request #478)

Fixed: uploading JPEG image from Unicode directory fails

Approved-by: Andrey Lihatskiy <andreylproductengine@lindenlab.com>
Approved-by: Simon Linden <simon@lindenlab.com>

indra/llimage/llimagedimensionsinfo.cpp

@@ -163,7 +163,7 @@ bool LLImageDimensionsInfo::getImageDimensionsJpeg()
 {
 	sJpegErrorEncountered = false;
 	clean();
-	FILE *fp = fopen (mSrcFilename.c_str(), "rb");
+	FILE *fp = LLFile::fopen(mSrcFilename, "rb");
 	if (fp == NULL) 
 	{
 		setLastError("Unable to open file for reading", mSrcFilename);