quartz: fix compiler warnings on Clang

[Austin English]

-- 
-Austin
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diff --git a/dlls/quartz/avisplit.c b/dlls/quartz/avisplit.c
index 5b0c7e0..a895ae5 100644
--- a/dlls/quartz/avisplit.c
+++ b/dlls/quartz/avisplit.c
@@ -535,8 +535,8 @@ static HRESULT AVISplitter_ProcessIndex(AVISplitterImpl *This, AVISTDINDEX **ind
 
     TRACE("FOURCC: %s\n", debugstr_an((char *)&pIndex->fcc, 4));
     TRACE("wLongsPerEntry: %hd\n", pIndex->wLongsPerEntry);
-    TRACE("bIndexSubType: %hd\n", pIndex->bIndexSubType);
-    TRACE("bIndexType: %hd\n", pIndex->bIndexType);
+    TRACE("bIndexSubType: %u\n", pIndex->bIndexSubType);
+    TRACE("bIndexType: %u\n", pIndex->bIndexType);
     TRACE("nEntriesInUse: %u\n", pIndex->nEntriesInUse);
     TRACE("dwChunkId: %.4s\n", (char *)&pIndex->dwChunkId);
     TRACE("qwBaseOffset: %x%08x\n", (DWORD)(pIndex->qwBaseOffset >> 32), (DWORD)pIndex->qwBaseOffset);
@@ -785,8 +785,8 @@ static HRESULT AVISplitter_ProcessStreamList(AVISplitterImpl * This, const BYTE
             }
 
             TRACE("wLongsPerEntry: %hd\n", pIndex->wLongsPerEntry);
-            TRACE("bIndexSubType: %hd\n", pIndex->bIndexSubType);
-            TRACE("bIndexType: %hd\n", pIndex->bIndexType);
+            TRACE("bIndexSubType: %u\n", pIndex->bIndexSubType);
+            TRACE("bIndexType: %u\n", pIndex->bIndexType);
             TRACE("nEntriesInUse: %u\n", pIndex->nEntriesInUse);
             TRACE("dwChunkId: %.4s\n", (const char *)&pIndex->dwChunkId);
             if (pIndex->dwReserved[0])