[6.x] Docblock tweaks for Enumerable and friends (laravel#30130)

* Triple space fix in docblock params

* Replace 'test' with 'truth test'

Everywhere else in `Enumerable` and `EnumeratesValues`, predicate
expressions not subsumed under ‘callback’ are called ‘truth tests’.

Motivation is ubiquitous language

* Update 'diff using' function docs in Enumerables

The `diffUsing` docblock on `Enumerable` already indicates the callback
is used [for comparison].

The motivation for adding this clarity to the other ‘diff using’
function docs is:

1) to make it a little more difficult for someone looking at the diff
functions to get confused

2) to align the docblocks on all these functions with the arguably
better precedent set by `diffUsing` on `Enumerable`

Also do the triple-space docblock param fix in `Enumerable` that I
missed

src/Illuminate/Support/Collection.php

@@ -208,7 +208,7 @@ public function diff($items)
     }
 
     /**
-     * Get the items in the collection that are not present in the given items.
+     * Get the items in the collection that are not present in the given items, using the callback.
      *
      * @param  mixed  $items
      * @param  callable  $callback
@@ -231,7 +231,7 @@ public function diffAssoc($items)
     }
 
     /**
-     * Get the items in the collection whose keys and values are not present in the given items.
+     * Get the items in the collection whose keys and values are not present in the given items, using the callback.
      *
      * @param  mixed  $items
      * @param  callable  $callback
@@ -254,9 +254,9 @@ public function diffKeys($items)
     }
 
     /**
-     * Get the items in the collection whose keys are not present in the given items.
+     * Get the items in the collection whose keys are not present in the given items, using the callback.
      *
-     * @param  mixed   $items
+     * @param  mixed  $items
      * @param  callable  $callback
      * @return static
      */

src/Illuminate/Support/Enumerable.php

@@ -159,7 +159,7 @@ public function diffUsing($items, callable $callback);
     public function diffAssoc($items);
 
     /**
-     * Get the items whose keys and values are not present in the given items.
+     * Get the items whose keys and values are not present in the given items, using the callback.
      *
      * @param  mixed  $items
      * @param  callable  $callback
@@ -176,9 +176,9 @@ public function diffAssocUsing($items, callable $callback);
     public function diffKeys($items);
 
     /**
-     * Get the items whose keys are not present in the given items.
+     * Get the items whose keys are not present in the given items, using the callback.
      *
-     * @param  mixed   $items
+     * @param  mixed  $items
      * @param  callable  $callback
      * @return static
      */
@@ -218,7 +218,7 @@ public function each(callable $callback);
     public function eachSpread(callable $callback);
 
     /**
-     * Determine if all items pass the given test.
+     * Determine if all items pass the given truth test.
      *
      * @param  string|callable  $key
      * @param  mixed  $operator

src/Illuminate/Support/LazyCollection.php

@@ -237,7 +237,7 @@ public function diffAssoc($items)
     }
 
     /**
-     * Get the items whose keys and values are not present in the given items.
+     * Get the items whose keys and values are not present in the given items, using the callback.
      *
      * @param  mixed  $items
      * @param  callable  $callback
@@ -260,9 +260,9 @@ public function diffKeys($items)
     }
 
     /**
-     * Get the items whose keys are not present in the given items.
+     * Get the items whose keys are not present in the given items, using the callback.
      *
-     * @param  mixed   $items
+     * @param  mixed  $items
      * @param  callable  $callback
      * @return static
      */

src/Illuminate/Support/Traits/EnumeratesValues.php

@@ -197,7 +197,7 @@ public function eachSpread(callable $callback)
     }
 
     /**
-     * Determine if all items pass the given test.
+     * Determine if all items pass the given truth test.
      *
      * @param  string|callable  $key
      * @param  mixed  $operator