pgsql: Don't pass oidvector by value.

Don't pass oidvector by value.

Since the structure ends with a flexible array, doing so truncates any
vector having more than one element.  New in 9.3, so no back-patch.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/813895e4acfa646c6c0405a0a8c5d05637f42865

Modified Files
--------------
src/backend/commands/alter.c        |    4 ++--
src/backend/commands/functioncmds.c |    6 +++---
src/include/commands/defrem.h       |    2 +-
3 files changed, 6 insertions(+), 6 deletions(-)