documentation-file-ref-check: Make git check work for multiple working directories

With multiple git working directories, '.git' may also be a text file
linking to the actual git tree instead of a directory.

Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Signed-off-by: Rob Herring <[email protected]>
Reviewed-by: Mauro Carvalho Chehab <[email protected]>
Tested-by: Mauro Carvalho Chehab <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>

0 files changed, 0 insertions, 0 deletions