Bug 128587 : Fix a typo in uScanDecomposedHangulCommon() to make

EUC-KR/ISO-2022-KR decoders work correctly with 8byte-seq. representation
of Hangul syllables. r=yokoyama, sr=alecf, a=scc

intl/uconv/src/uscan.c

@@ -830,7 +830,7 @@ PRIVATE PRBool uScanDecomposedHangulCommon(
         /*   B8   B9   BA   BB   BC   BD   BE       */
         22,0xff,  23,  24,  25,  26,  27     
     };
-    TIndex = tMap[in[3] - (mask&0xa1)];
+    TIndex = tMap[in[7] - (mask&0xa1)];
     if(0xff == (0xff & TIndex))
       return PR_FALSE;
   }