Merge pull request #1921 from 9rnsr/fix12089

[REG2.065a] Issue 12089 - std.utf.validate and inout(char[]) failts to compile
Merge pull request #1920 from 9rnsr/fix12098

[REG2.065a] Issue 12098 - libcurl bad argument on handle null
Merge pull request #1925 from 9rnsr/2.065

Puck up changes from master to 2.065 branch