Counts
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Some Vi commands which do not accept a count now accept one
`p'
`P'
Given counts, text will be yanked (in Vi's sense) that many times.
Thus `3 p' is the same as `p p p'.
`o'
`O'
Given counts, that many copies of text will be inserted. Thus `o a
b c <ESC>' will insert 3 lines of `abc' below the current line.
`/'
`?'
Given a count N, N-th occurrence will be searched.