Option to show file name like `strings -f` / `--print-file-name`

[cirosantilli]

As of 1d7efab ASCII characters are printed instead of the file names.

echo asdf > file1
echo qwer > file2
stringsext file1 file2

outputs:

A asdf
B qwer

where A means file1 and B means file2, which is quite obscure, especially if you have many files. It would be good at least to have an option to have filenames directly:

stringsext -f file1 file2

giving:

file1 asdf
file2 qwer

[getreu]

Thank you for your feed-back about improving the output format.