Silence DeprecationWarnings from uses of has_key and <> in plat-mac.
diff --git a/Lib/plat-mac/macerrors.py b/Lib/plat-mac/macerrors.py
index de1c1e2..58d79d6 100644
--- a/Lib/plat-mac/macerrors.py
+++ b/Lib/plat-mac/macerrors.py
@@ -1579,7 +1579,7 @@
smFHBlockRdErr = -310 #Error occurred during _sGetFHeader.
smBLFieldBad = -309 #ByteLanes field was bad.
smUnExBusErr = -308 #Unexpected BusError
-smResrvErr = -307 #Fatal reserved error. Resreved field <> 0.
+smResrvErr = -307 #Fatal reserved error. Reserved field != 0.
smNosInfoArray = -306 #No sInfoArray. Memory Mgr error.
smDisabledSlot = -305 #This slot is disabled (-305 use to be smLWTstBad)
smNoDir = -304 #Directory offset is Nil