Merge pull request #482 from perl6/update-dynamic-vars

Added TMPDIR and fixed some errors (according to S28)

Author: jonathanstowe

doc/Language/variables.pod

@@ -1042,13 +1042,13 @@ Other compile-time variables:
     ------------------+--------------------------------------------
     $*CWD             | The Current Working Directory.
     ------------------+--------------------------------------------
-    $*KERNEL          | Which kernel am I compiled for?
+    $*KERNEL          | Which kernel am I running under?
     ------------------+--------------------------------------------
-    $*DISTRO          | Which OS distribution am I compiling under?
+    $*DISTRO          | Which OS distribution am I running under?
     ------------------+--------------------------------------------
-    $*VM              | Which virtual machine am I compiling under?
+    $*VM              | Which virtual machine am I running under?
     ------------------+--------------------------------------------
-    $*PERL            | Which Perl am I compiled for?
+    $*PERL            | Which Perl am I running under?
     ------------------+--------------------------------------------
     $*PID             | Process ID of the current process.
     ------------------+--------------------------------------------
@@ -1082,5 +1082,7 @@ Other compile-time variables:
     $*SPEC            | The appropriate L<IO::Spec> sub-class for the platform that
                       | the program is running on.
     ------------------+--------------------------------------------
+    $*TMPDIR          | An L<IO::Path> object representing the "system temporary directory"
+    ------------------+--------------------------------------------
 
 =end pod