Test completing directories and filenames with spaces
Test completing directories and filenames with spaces

Tested-by: Mark Somerville <f1b5a91d4d6ad523f2610114591c007e75d15084@scottishclimbs.com> [MRI 1.8.7, MRI 1.9.2]
Signed-off-by: Mark Somerville <f1b5a91d4d6ad523f2610114591c007e75d15084@scottishclimbs.com>

mattn/rb-readline,ConnorAtherton/rb-readline,abinoam/rb-readline,rapid7/rb-readline