Fix docstring

[devmotion]

Addresses #26 (comment).

[torfjelde]

Thanks!

[coveralls]

Pull Request Test Coverage Report for Build 1151075782

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 77.778%

---

Totals
Change from base Build 1150932095:	0.0%
Covered Lines:	84
Relevant Lines:	108

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💛 - Coveralls

[codecov]

Codecov Report

Merging #29 (5c101bc) into main (c8fc126) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #29   +/-   ##
=======================================
  Coverage   77.77%   77.77%           
=======================================
  Files           1        1           
  Lines         108      108           
=======================================
  Hits           84       84           
  Misses         24       24           

Impacted Files	Coverage Δ
src/varname.jl	77.77% <ø> (ø)

---

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