[2.7] Fix checking for bugfix Tcl version. (GH-10185).#10188

serhiy-storchaka merged 2 commits intopython:2.7python/cpython:2.7from

serhiy-storchaka:backport-18d57b4-2.7serhiy-storchaka/cpython:backport-18d57b4-2.7Copy head branch name to clipboard