ogr2ogr -f CSV output.csv PG:"host=myhost port=5432 user='postgres' password='mypassword' dbname='mydb'" "myschema.mytable"

ERROR 1: PQconnectdb failed.
invalid connection option ""host"

FAILURE:
Unable to open datasource `PG:"host=myhost' with the following drivers.

apt-get install gdal-bin

# ogr2ogr --version
  GDAL 1.11.3, released 2015/09/16