Bugzilla bug #46525: checked in a fix to silence a Purify UMR warning.

Thanks to Daniel Bratell <bratell@lysator.liu.se> for the bug report
and the fix.

nsprpub/pr/src/md/windows/ntsec.c

@@ -67,7 +67,8 @@ static struct {
 void _PR_NT_InitSids(void)
 {
     SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY;
-    HANDLE hToken;
+    HANDLE hToken = NULL; /* initialized to an arbitrary value to
+                           * silence a Purify UMR warning */
     UCHAR infoBuffer[1024];
     PTOKEN_OWNER pTokenOwner = (PTOKEN_OWNER) infoBuffer;
     PTOKEN_PRIMARY_GROUP pTokenPrimaryGroup