rose.config_processors.file: ~ expansion in source
t/rose-suite-scan: fix null config skip logic
Merge pull request #1003 from matthewrmshin/conf-file-source-tilde

rose.config_processors.file: ~ expansion in source
Merge pull request #1004 from matthewrmshin/fix-t-rose-suite-scan

t/rose-suite-scan: fix null config skip logic