Update deprecated.nix

fix a typo

Changed files
+1 -1
lib
+1 -1
lib/deprecated.nix
···
nixType = x:
if isAttrs x then
if x ? outPath then "derivation"
-
else "aattrs"
+
else "attrs"
else if isFunction x then "function"
else if isList x then "list"
else if x == true then "bool"