Cast precision argument to int in debug log

The `%.*s` format specifier expects an int for the precision argument, but
`label.ulValueLen` is a CK_ULONG. Cast the length to int to prevent type
mismatch.

Fixes CID 643611 from Coverity.

Signed-off-by: Simo Sorce <simo@redhat.com>

Author: simo5

src/obj/fetch.c

@@ -488,7 +488,8 @@ CK_RV p11prov_obj_find(P11PROV_CTX *provctx, P11PROV_SESSION *session,
     CK_RV ret;
 
     P11PROV_debug("Find objects [class=%lu, id-len=%lu, label=%.*s]", class,
-                  id.ulValueLen, label.type == CKA_LABEL ? label.ulValueLen : 4,
+                  id.ulValueLen,
+                  label.type == CKA_LABEL ? (int)label.ulValueLen : 4,
                   label.type == CKA_LABEL ? (char *)label.pValue : "None");
 
     switch (class) {