Run pgindent on 9.2 source tree in preparation for first 9.3

contrib/auto_explain/auto_explain.c

contrib/dblink/dblink.c

contrib/file_fdw/file_fdw.c

contrib/pg_archivecleanup/pg_archivecleanup.c

contrib/pg_stat_statements/pg_stat_statements.c

contrib/pg_test_fsync/pg_test_fsync.c

contrib/pg_test_timing/pg_test_timing.c

contrib/pg_trgm/trgm_gist.c

contrib/pg_upgrade/check.c

contrib/pg_upgrade/controldata.c

contrib/pg_upgrade/exec.c

contrib/pg_upgrade/file.c

contrib/pg_upgrade/function.c

contrib/pg_upgrade/info.c

contrib/pg_upgrade/option.c

contrib/pg_upgrade/pg_upgrade.c

contrib/pg_upgrade/pg_upgrade.h

contrib/pg_upgrade/relfilenode.c

contrib/pg_upgrade/server.c

contrib/pg_upgrade/tablespace.c