fix(token): Be consistent on take_until("")

[epage]

We aren't consistent on empty buffers between simd and not.

Fixes #489

[codecov]

Codecov Report

Attention: Patch coverage is 41.66667% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 41.82%. Comparing base (c3e3e4d) to head (9d50921).

Files	Patch %	Lines
src/stream/mod.rs	41.66%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #490      +/-   ##
==========================================
- Coverage   41.83%   41.82%   -0.01%     
==========================================
  Files          18       18              
  Lines        3043     3046       +3     
==========================================
+ Hits         1273     1274       +1     
- Misses       1770     1772       +2     

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[coveralls]

Pull Request Test Coverage Report for Build 8083211839

Details

• -7 of 12 (41.67%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.009%) to 41.825%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/stream/mod.rs	5	12	41.67%

Totals
Change from base Build 8073857515:	-0.009%
Covered Lines:	1274
Relevant Lines:	3046

---

💛 - Coveralls