Add match-full option to directory-files{,-recur}
This option fixes the oddity that when matching the file either
with regex or with predicate one could only use the actual
filename, and could not consider the full path. This add
'match-full to the FULL option, and in this case the regex and
the predicate will receive the full path not just the filename
* src/dired.c(directory-files): Add match-full support
(directory-files-recur): Add match-full support
Signed-off-by: Nelson Ferreira <nelson.ferreira@ieee.org>