Clarification about @*ARGS closes #2790

Author: JJ

doc/Language/variables.pod6

@@ -56,7 +56,8 @@ declaration of the variable.  Assuming we have a C<FailHash> class:
     class FailHash is Hash {
         has Bool $!final = False;
         multi method AT-KEY ( ::?CLASS:D: Str:D \key ){
-            fail X::OutOfRange.new(:what("Hash key"), :got(key), :range(self.keys)) if $!final && !self.EXISTS-KEY(key);
+            fail X::OutOfRange.new(:what("Hash key"), :got(key),
+              :range(self.keys)) if $!final && !self.EXISTS-KEY(key);
             callsame  # still not final, so do normal action from Hash
         }
 
@@ -94,8 +95,8 @@ Item assignment places the value from the right-hand side into the variable
 
 List assignment leaves the choice of what to do to the variable on the left.
 
-For example, L<Array|/type/Array> variables (C<@> sigil) empty themselves on list
-assignment and then put all the values from the right-hand side into
+For example, L<Array|/type/Array> variables (C<@> sigil) empty themselves on
+list assignment and then put all the values from the right-hand side into
 themselves.
 
 The type of assignment (item or list) is decided by the first context
@@ -799,7 +800,8 @@ array.
 
 =head3 The C<%> variable
 
-In addition, there's an L<Associative|/type/Associative> anonymous state variable C<%>.
+In addition, there's an L<Associative|/type/Associative> anonymous state
+variable C<%>.
 
     sub foo($x) {
         say (%).push($x => $x);
@@ -932,7 +934,8 @@ L<of|/type/Variable#trait_of> to set a type constraint.
     my Int $x = 42;
     $x = 'a string';
     CATCH { default { put .^name, ': ', .Str } }
-    # OUTPUT: «X::TypeCheck::Assignment: Type check failed in assignment to $x; expected Int but got Str ("a string")␤»
+    # OUTPUT: «X::TypeCheck::Assignment: Type check failed in assignment to $x;
+    expected Int but got Str ("a string")␤»
 
 If a scalar variable has a type constraint but no initial value, it's
 initialized with the type object of the default value of the container it's
@@ -961,8 +964,9 @@ re-applied by assigning C<Nil> to it:
 
 =head2 Default defined variables pragma
 
-To force all variables to have a L<definiteness|/language/mop#index-entry-syntax_DEFINITE-DEFINITE>
-constraint, use the pragma C<use variables :D>. The pragma is lexically scoped and can be
+To force all variables to have a
+L<definiteness|/language/mop#index-entry-syntax_DEFINITE-DEFINITE> constraint,
+use the pragma C<use variables :D>. The pragma is lexically scoped and can be
 switched off with C<use variables :_>.
 
 =begin code :skip-test<compile-time error>
@@ -1267,7 +1271,7 @@ for examples and more context.
 
 =head4 C<@*ARGS>
 
-C<@*ARGS> contains the arguments from the command line.
+C<@*ARGS> is an array of C<Str> containing the arguments from the command line.
 
 X<|&*ARGS-TO-CAPTURE>
 =head4 C<&*ARGS-TO-CAPTURE>
@@ -1329,8 +1333,8 @@ in your program.
 X<|$*TZ>
 =head4 C<$*TZ>
 
-C<$*TZ> contains the system's local time zone offset, as the number of B<seconds>
-from GMT.
+C<$*TZ> contains the system's local time zone offset, as the number of
+B<seconds> from GMT.
 
 X<|$*CWD>
 =head4 C<$*CWD>
@@ -1515,13 +1519,14 @@ C<1e-15>.
 X<|$*THREAD>
 =head4 C<$*THREAD>
 
-Contains a L<Thread|/type/Thread> object representing the currently executing thread.
+Contains a L<Thread|/type/Thread> object representing the currently executing
+thread.
 
 X<|$*SCHEDULER>
 =head4 C<$*SCHEDULER>
 
-This is a L<ThreadPoolScheduler|/type/ThreadPoolScheduler> object representing the current default
-scheduler.
+This is a L<ThreadPoolScheduler|/type/ThreadPoolScheduler> object representing
+the current default scheduler.
 
 By default this imposes a maximum of 64 threads on the methods C<.hyper>,
 C<.race> and other thread-pool classes that use that scheduler such as