fix some IO methodname fossils

Author: TimToady

S28-special-names.pod

@@ -177,8 +177,8 @@ If a column has a "-" in it, it means that item is unavailable in that version o
  $@  $EVAL_ERROR     -              Use shiny new $!
  $^E                 -              Use shiny new $!
  $^S                 -
- $. $NR              $*IN.input_record_number()
- $/ $RS              $*IN.input_record_separator()
+ $. $NR              $*IN.ins()
+ $/ $RS              $*IN.input-line-separator()
  $|                  $*OUT.autoflush()
  $, $OFS             $*OUT.output_field_separator()
  $\                  $*OUT.output_record_separator()