pgsql: Fix typos in some error messages thrown by extension scripts whe

Fix typos in some error messages thrown by extension scripts when fed to psql.

Some of the many error messages introduced in 458857cc missed 'FROM
unpackaged'. Also e016b724 and 45ffeb7e forgot to quote extension
version numbers.

Backpatch to 9.1, just like 458857cc which introduced the messages. Do
so because the error messages thrown when the wrong command is copy &
pasted aren't easy to understand.

Branch
------
REL9_1_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/0aa09c9cf37229a0a2b54b963dab877eb83ccfc4

Modified Files
--------------
contrib/btree_gin/btree_gin--unpackaged--1.0.sql | 2 +-
contrib/btree_gist/btree_gist--unpackaged--1.0.sql | 2 +-
contrib/chkpass/chkpass--unpackaged--1.0.sql | 2 +-
contrib/citext/citext--unpackaged--1.0.sql | 2 +-
contrib/cube/cube--unpackaged--1.0.sql | 2 +-
contrib/dblink/dblink--unpackaged--1.0.sql | 2 +-
contrib/dict_int/dict_int--unpackaged--1.0.sql | 2 +-
contrib/dict_xsyn/dict_xsyn--unpackaged--1.0.sql | 2 +-
contrib/earthdistance/earthdistance--unpackaged--1.0.sql | 2 +-
contrib/fuzzystrmatch/fuzzystrmatch--unpackaged--1.0.sql | 2 +-
contrib/hstore/hstore--unpackaged--1.0.sql | 2 +-
contrib/intagg/intagg--unpackaged--1.0.sql | 2 +-
contrib/intarray/intarray--unpackaged--1.0.sql | 2 +-
contrib/isn/isn--unpackaged--1.0.sql | 2 +-
contrib/lo/lo--unpackaged--1.0.sql | 2 +-
contrib/ltree/ltree--unpackaged--1.0.sql | 2 +-
contrib/pageinspect/pageinspect--unpackaged--1.0.sql | 2 +-
contrib/pg_buffercache/pg_buffercache--unpackaged--1.0.sql | 2 +-
contrib/pg_freespacemap/pg_freespacemap--unpackaged--1.0.sql | 2 +-
contrib/pg_stat_statements/pg_stat_statements--unpackaged--1.0.sql | 2 +-
contrib/pg_trgm/pg_trgm--unpackaged--1.0.sql | 2 +-
contrib/pgcrypto/pgcrypto--unpackaged--1.0.sql | 2 +-
contrib/pgrowlocks/pgrowlocks--unpackaged--1.0.sql | 2 +-
contrib/pgstattuple/pgstattuple--unpackaged--1.0.sql | 2 +-
contrib/seg/seg--unpackaged--1.0.sql | 2 +-
contrib/spi/autoinc--unpackaged--1.0.sql | 2 +-
contrib/spi/insert_username--unpackaged--1.0.sql | 2 +-
contrib/spi/moddatetime--unpackaged--1.0.sql | 2 +-
contrib/spi/refint--unpackaged--1.0.sql | 2 +-
contrib/spi/timetravel--unpackaged--1.0.sql | 2 +-
contrib/sslinfo/sslinfo--unpackaged--1.0.sql | 2 +-
contrib/tablefunc/tablefunc--unpackaged--1.0.sql | 2 +-
contrib/test_parser/test_parser--unpackaged--1.0.sql | 2 +-
contrib/tsearch2/tsearch2--unpackaged--1.0.sql | 2 +-
contrib/unaccent/unaccent--unpackaged--1.0.sql | 2 +-
contrib/uuid-ossp/uuid-ossp--unpackaged--1.0.sql | 2 +-
contrib/xml2/xml2--unpackaged--1.0.sql | 2 +-
37 files changed, 37 insertions(+), 37 deletions(-)