cmd/desc: fix handling of --eval-all with formulae

This was caused by some refactoring of `Formula.all` a few months ago.

In this case, `eval-all` was not propagated to the Formula.all command
which caused a few different description related commands not to work.

Broken commands:
- `brew search --desc --eval-all TERM`
- `brew desc --search --eval-all TERM`
- `brew desc --descriptions --eval-all TERM`

Library/Homebrew/description_cache_store.rb

@@ -34,7 +34,7 @@ class DescriptionCacheStore < CacheStore
     return unless eval_all
     return unless database.empty?
 
-    Formula.all.each { |f| update!(f.full_name, f.desc) }
+    Formula.all(eval_all: eval_all).each { |f| update!(f.full_name, f.desc) }
   end
 
   # Use an update report to update the {DescriptionCacheStore}.