Invalid annotation keyword format detected RB-ST1023

The annotation keyword is followed by a colon and a space, then a note describing the problem. Supported keywords are TODO, FIXME, OPTIMIZE, HACK and REVIEW.

Bad practice

def bar
  # FIXME This has crashed occasionally since v3.2.1.
  baz(:quux)
end

Recommended

def bar
  # FIXME: This has crashed occasionally since v3.2.1.
  baz(:quux)
end