pgsql: Make sure ecpg header files do not have a comment lasting severa

Make sure ecpg header files do not have a comment lasting several lines, one of
which is a preprocessor directive. This leads ecpg to incorrectly parse the comment as nested.

Branch
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REL9_5_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/40482e606733675eb9e5b2f7221186cf81352da1

Modified Files
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src/interfaces/ecpg/include/datetime.h | 4 ++--
src/interfaces/ecpg/include/decimal.h  | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)