A small program for embedding a string into the unused ELF header padding
Usage: markelf <input file> <string>
This is not guaranteed to work across all platforms.
If a platform does not skip the padding bytes altogether, or if the ELF format changes to extend e_ident, there is a good chance this will not work.
This is mainly just a short half-joke created out of boredom and sleep deprivation, so it is not intended for production code.