export vim_eval
tiny fix to SYNOPSIS e.g.

 grab a word instead of space  to make the example "Just Work" in cargo coding cut and paste mode

... for great good
changelog
disto maintenance
placate Test::Vars
v1.0.1

 [BUG FIXES]
 - 'vim_eval' wasn't exported.

 [DOCUMENTATION]
 - Synopsis typo fix. (GH#2, Graham Todd)

 [STATISTICS]
 - code churn: 4 files changed, 17 insertions(+), 10 deletions(-)