Document that $^S is 1 inside a try block

Author: leonerd

pod/perlvar.pod

@@ -1840,7 +1840,7 @@ Current state of the interpreter.
     $^S         State
     ---------   -------------------------------------
     undef       Parsing module, eval, or main program
-    true (1)    Executing an eval
+    true (1)    Executing an eval or try block
     false (0)   Otherwise
 
 The first state may happen in C<$SIG{__DIE__}> and C<$SIG{__WARN__}>