Fix typo
BLAST+ 2.2.30 adds blastp-fast, blastx-fast and tblastn-fast

The -task argument is new for  BLASTX and TBLASTN, offering
default blastx and tblastn and new options blastx-fast and
tblastn-fast.

BLASTP already had a -task argument, so blastp-fast is just
a new option to choose from.
As of BLAST+ 2.2.30, psiblast can iterate until convergence