Tidy syntax based o pep8 and shellcheck advice
-rw-r--r-- 1090 LICENSE.txt
-rw-r--r-- 1639 README.md
-rwxr-xr-x 731 display-certificate
-rwxr-xr-x 509 display-csr
-rwxr-xr-x 499 display-key
-rwxr-xr-x 486 get-certificate
-rwxr-xr-x 630 get-chain
-rwxr-xr-x 2663 get-sha1
-rwxr-xr-x 7813 make-csr
-rwxr-xr-x 651 sumarise-certificate