pgsql: Treat ENOTDIR as ENOENT when looking for client certificate file

Treat ENOTDIR as ENOENT when looking for client certificate file

This makes it possible to use a libpq app with home directory set
to /dev/null, for example - treating it the same as if the file
doesn't exist (which it doesn't).

Per bug #6302, reported by Diego Elio Petteno

Branch
------
REL9_1_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/a6f8e7d9590d157e379efe4a4edfc32ab283ec42

Modified Files
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src/interfaces/libpq/fe-secure.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)