fixed cursorless echo after input finished

[richardmcsong]

Fixes #117

[CLAassistant]

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[codecov[bot]]

Codecov Report

Merging #118 into master will decrease coverage by 0.08%. The diff coverage is 0%.

@@            Coverage Diff             @@
##           master     #118      +/-   ##
==========================================
- Coverage    30.5%   30.41%   -0.09%     
==========================================
  Files           6        6              
  Lines         695      697       +2     
==========================================
  Hits          212      212              
- Misses        462      464       +2     
  Partials       21       21

Impacted Files	Coverage Δ
prompt.go	0% <0%> (ø)	:arrow_up:
cursor.go	53.27% <0%> (-1.02%)	:arrow_down:

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[jrkt]

What's the hold up on this PR? This is the one thing holding us up from implementing this library.