Log Message:
-----------
Set the correct context (PGC_SIGHUP) for log_autovacuum, per ITAGAKI Takahiro.
Fix grammatical errors in its description.
Modified Files:
--------------
pgsql/doc/src/sgml:
config.sgml (r1.142 -> r1.143)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/config.sgml?r1=1.142&r2=1.143)
pgsql/src/backend/utils/misc:
guc.c (r1.417 -> r1.418)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c?r1=1.417&r2=1.418)