Files not found when sourcing diracosrc with latest diracos release

[maxnoe]

After running the installation script, sourcing the diracosrc gives the following errors:

$ source ~/.local/diracos/diracosrc 
realpath: '': No such file or directory
realpath: /etc/grid-security/certificates: No such file or directory
realpath: '': No such file or directory
realpath: '': No such file or directory

[fstagni]

@chaen I think this is the result of #97. Can you have a look?

[chaen]

It's already fixed in #98