After 613673a, the paths in $LOAD_FEATURES are formatted incorrectly in 1.8 mode. This causes Travis failures in all RUBYSPEC_LANG_VER='1.8' suites. See here for example.
Travis after this fix looks like this (not green yet... but greener. The remaining reds are pre-existing and unrelated to this fix.)
@ratnikov please chime in if I've missed something here!
Fix $LOAD_FEATURES paths for 1.8
Looks good to me :)