shinsen: 「余猶」と書くのはあやまり。

Google N-gram Corpus Counts
╭─ーーー─┬───────────╮
│ 余裕　 │ 8,701,140 │
│ 余猶　 │        72 │ - add, sK
│ よゆう │    24,133 │
╰─ーーー─┴───────────╯

@@ -8,0 +9,4 @@
+</k_ele>
+<k_ele>
+<keb>余猶</keb>
+<ke_inf>&sK;</ke_inf>

I saw ヨユー in a Line conversation, sense 
1. I don't see any reason it wouldn't 
apply to sense 2 as well, it's really just 
a stylistic choice. I think I actually 
agree with Robin though. You will find 
similar variants of all words that are 
common enough.

OTOH a 28,000 combined n-gram count is significant. If there's evidence that these forms are being used for 余裕 I'd include them, The trouble is that Googling for them and looking at the passages containing them doesn't provide me with evidence that they apply here.

I've never seen 余裕 written like that. The n-gram counts are <1% that of 余裕. Probably not needed.