s{^(\Q+++\E )-\t}{$1$f\t} && wasdiff==1;
next if /^[?]/;
next if /^Index:/;
+ next if /^index /;
next if /^={67}$/;
next if /^RCS file:/;
next if /^retrieving revision /;
next if /^diff -/;
next if /^revision /;
+ next if /^new file mode /;
+ next if /^deleted file mode /;
next if m{^/.*,v --> standard output$};
print;
'