Fix previous patch so it also works if not USE_SSL (mea culpa).
On balance, the need to cover this case changes my mind in favor of pushing
all error-message generation duties into the two fe-secure.c routines.
So do it that way.
Branch
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REL9_0_STABLE
Details
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http://git.postgresql.org/pg/commitdiff/65c033cbe913972872a10b17deae636243ae96df
Modified Files
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src/interfaces/libpq/fe-misc.c | 58 ++--------
src/interfaces/libpq/fe-secure.c | 210 ++++++++++++++++++++++++++++----------
2 files changed, 170 insertions(+), 98 deletions(-)