[ruby/strscan] test: Run test more with fixed anchor mode (https://github.com/ruby/strscan/pull/60)
fix https://github.com/ruby/strscan/pull/56
[ruby/strscan] test: Run test more with fixed anchor mode
(https://github.com/ruby/strscan/pull/60)
fix https://github.com/ruby/strscan/pull/56