Bug 1167912 - Add eldritch to the en-US dictionary. r=ehsan

--HG--
extra : rebase_source : 01ab107ade1df66d95108aac795bdd307b969870

extensions/spellcheck/locales/en-US/hunspell/en-US.dic

@@ -1,4 +1,4 @@
-54817
+54818
 0/nm
 0th/pt
 1/n1
@@ -27219,6 +27219,7 @@ elder/SMY
 elderberry/SM
 eldercare/M
 eldest
+eldritch
 elect/ASMDGV
 electable
 election/AMS