FILL PARAGRAPH
  Reformats the current paragraph, so that the maximum number of words fits
  on a line according to the margins of the buffer.
  Typically, you use FILL PARAGRAPH after erasing, removing, or pasting
  text, or after changing the margins or paragraph indent.
  Steps:
     1.  Put the cursor anywhere in the paragraph you want to fill.
     2.  Use FILL PARAGRAPH. The cursor moves to the end of the paragraph.
  Example:
     The following commands set the left and right margins and reformat the
     current paragraph accordingly. You can then restore the previous
     margins for editing the rest of the buffer.
        Command: SET LEFT MARGIN 5
        Command: SET RIGHT MARGIN 60
        Command: FILL PARAGRAPH
  Usage notes:
  o  EVE's default paragraph boundaries are any of the following:
        *  Blank line
        *  Top or bottom of the buffer
        *  Page break (form feed at the start of a line)
        *  RUNOFF command (such as .BREAK;) at the start of a line
        *  VAX DOCUMENT tag (such as <LE>) at the start of a line
  o  FILL PARAGRAPH deletes tabs and spaces at the start of each line in the
     paragraph, but does not affect tabs and spaces in the middle of a line
     or at the end of a line.
  o  Use SET FILL TAGS to make EVE fill RUNOFF commands or VAX DOCUMENT tags
     at the start of a line, that is, remove them from the list of paragraph
     boundaries. You may then want to redefine FILL keys, for example the
     EDT keypad GOLD-KP8 key, as FILL RANGE. This would avoid accidentally
     filling text that does not have blank lines or page breaks---possibly
     making your entire buffer hard to read. SET FILL NOTAGS restores RUNOFF
     commands or VAX DOCUMENT tags at the start of a line to the list of
     paragraph boundaries.
  Related topics:
     FILL                FILL RANGE              SET FILL TAGS
     SET LEFT MARGIN     SET PARAGRAPH INDENT    SET RIGHT MARGIN