opetion suggestion :: --append-rpath

[EricDeveaud]

Hello,

sorry for the typo in title....
s/opetion/option/

I have sometime the need to add some location to binaries//libs that already have rpath set

in this case I usually do the following, let say foo is the binary I want to deal with

patchelf --set-rpath '/some/path/to/lib:'$(patchelf --print-rpath foo) foo

would you consider adding a otion to perform this task in an easy way.
eg:

patchelf --append-rpath '/some/path/to/lib' foo

regards

Eric

[domenkozar]

Duplicated #184