Fix: patch libruby.x.y.z.dylib from travis to remove unwanted LOAD_PATH

[TomFreudenberg]

When using binaries from rubis.travis-ci.org there will be a fix LOAD_PATH linking /Users/travis/.rvm/...

To prevent that from being used, the strings should be emptied by filling / patching with ZEROS

Test with perl regex 's#/Users/travis/.rvm/ruby-#\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0#g' was successfull.

[TomFreudenberg]

The only caveeat ... perl must be available for that.

Looking for some other tool to replace binary data