pgsql: Fix typos in SQL scripts of pgcrypto

Fix typos in SQL scripts of pgcrypto

Author: Gurjeet Singh
Discussion: https://postgr.es/m/CABwTF4U_5kEnH93PXZEuEsZHuoSSuBEOqC6pian8vDfLZSQJNA@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/af94ea7406f332567331a9b2525fae4b57c96061

Modified Files
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contrib/pgcrypto/expected/hmac-sha1.out   | 2 +-
contrib/pgcrypto/expected/pgp-decrypt.out | 2 +-
contrib/pgcrypto/sql/hmac-sha1.sql        | 2 +-
contrib/pgcrypto/sql/pgp-decrypt.sql      | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)