dispatch: adjust the print specifies to avoid some warnings (NFCI)

This adjusts the dispatch debug logging to use to `%llx` for the conversion of some values. This avoids a format conversion warning on Windows.

src/event/event.c

@@ -760,9 +760,9 @@ _dispatch_timer_heap_update(dispatch_timer_heap_t dth,
 #pragma mark timer unote
 
 #define _dispatch_timer_du_debug(what, du) \
-_dispatch_debug("kevent-source[%p]: %s kevent[%p] { ident = 0x%x }", \
+_dispatch_debug("kevent-source[%p]: %s kevent[%p] { ident = 0x%llx }", \
 _dispatch_wref2ptr((du)->du_owner_wref), what, \
-(du), (du)->du_ident)
+(du), (unsigned long long)(du)->du_ident)
 
 DISPATCH_ALWAYS_INLINE
 static inline unsigned int

src/source.c

@@ -1449,11 +1449,11 @@ _dispatch_source_debug_attr(dispatch_source_t ds, char* buf, size_t bufsiz)
 dispatch_source_refs_t dr = ds->ds_refs;
 dispatch_queue_flags_t dqf = _dispatch_queue_atomic_flags(ds);
 dispatch_unote_state_t du_state = _dispatch_unote_state(dr);
-return dsnprintf(buf, bufsiz, "target = %s[%p], ident = 0x%x, "
+return dsnprintf(buf, bufsiz, "target = %s[%p], ident = 0x%llx, "
 "mask = 0x%x, pending_data = 0x%llx, registered = %d, "
 "armed = %d, %s%s%s",
 target && target->dq_label ? target->dq_label : "", target,
-dr->du_ident, dr->du_fflags, (unsigned long long)dr->ds_pending_data,
+(unsigned long long)dr->du_ident, dr->du_fflags, (unsigned long long)dr->ds_pending_data,
 _du_state_registered(du_state), _du_state_armed(du_state),
 (dqf & DSF_CANCELED) ? "cancelled, " : "",
 (dqf & DSF_NEEDS_EVENT) ? "needs-event, " : "",