fix Issue 11603 - std.algorithm.canFind does not work when needle is 1-byte zero
fix Issue 11671 - ctRegex broken
Merge pull request #1744 from 9rnsr/fix11603

Issue 11603 - std.algorithm.canFind does not work when needle is 1-byte zero
Merge pull request #1745 from 9rnsr/fix11671

Issue 11671 - ctRegex broken