Ensure found files are actually files

We located files in a few places but didn't check if they were files or
directories. Ensure they are actually files using stat() and S_ISREG(); this
showed itself when trying to download to the directory name itself in
FS#22645.

Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions