bash security and bug fix update

4.1.2-48 - Fix signal handling in read builtin Resolves: 1421926 4.1.2-47 - CVE-2016-9401 - Fix crash when '-' is passed as second sign to popd Resolves: 1396383 4.1.2-46 - CVE-2016-7543 - Fix for arbitrary code execution via SHELLOPTS+PS4 variables Resolves: 1379630 4.1.2-45 - CVE-2016-0634 - Fi...