fix pod formatting (fixes #24)

* add edit feature
* bump version

rpn.go

@@ -178,18 +178,28 @@ DESCRIPTION
         [no]debug            toggle debug output (nodebug turns it off)
         [no]showstack        show the last 5 items of the stack (noshowtack turns it off)
 
-    Show commands: dump display the stack contents hex show last stack item
+    Show commands:
-    in hex form (converted to int) history display calculation history vars
-    show list of variables
 
-    Stack manipulation commands: clear clear the whole stack shift remove
+        dump                 display the stack contents
-    the last element of the stack reverse reverse the stack elements swap
+        hex                  show last stack item in hex form (converted to int)
-    exchange the last two stack elements dup duplicate last stack item undo
+        history              display calculation history
-    undo last operation edit edit the stack interactively using vi or
+        vars                 show list of variables
-    $EDITOR
 
-    Other commands: help|? show this message manual show manual
+    Stack manipulation commands:
-    quit|exit|c-d|c-c exit program
+
+        clear                clear the whole stack
+        shift                remove the last element of the stack
+        reverse              reverse the stack elements
+        swap                 exchange the last two stack elements
+        dup                  duplicate last stack item
+        undo                 undo last operation
+        edit                 edit the stack interactively using vi or $EDITOR
+
+    Other commands:
+
+        help|?               show this message
+        manual               show manual
+        quit|exit|c-d|c-c    exit program
 
     Register variables:
 

rpn.pod

@@ -186,12 +186,14 @@ Configuration Commands:
     [no]showstack        show the last 5 items of the stack (noshowtack turns it off)
 
 Show commands:
+
     dump                 display the stack contents
     hex                  show last stack item in hex form (converted to int)
     history              display calculation history
     vars                 show list of variables
 
 Stack manipulation commands:
+
     clear                clear the whole stack
     shift                remove the last element of the stack
     reverse              reverse the stack elements
@@ -201,6 +203,7 @@ Stack manipulation commands:
     edit                 edit the stack interactively using vi or $EDITOR
 
 Other commands:
+
     help|?               show this message
     manual               show manual
     quit|exit|c-d|c-c    exit program