fixup??? fscache: add key for GIT_TRACE_FSCACHE

Needed by `en/header-split-cache-h`.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

compat/win32/fscache.c

@@ -7,6 +7,7 @@
 #include "../../mem-pool.h"
 #include "ntifs.h"
 #include "../../abspath.h"
+#include "../../trace.h"
 
 static volatile long initialized;
 static DWORD dwTlsIndex;