Você pode fazer isso com o notepad ++ com o seguinte RegExp para "Localizar:"
debug\(([0-9]+,) "
e substitua por
debug( "%s--[%d] "
Explicação do regexp
debug ; find the text "debug"
\( ; followed by a opening parenthesis,
; parentheses have a special meaning in regexp,
; so they must be escaped with a backslash
( ; followed by the first subpattern, that will go in backreference
[0-9]+ ; one or more digits
, ; followed by a comma
) ; end of the subpattern
" ; followed by a blank and a double quote
Substituímos isso por
debug( ; exact this text
; followed by the content of the first subpattern
" ; the blank and the double quote
%s--[%d] " ; and the text you want to insert in those lines