run_prettify_test: minor edits
run_prettify_test: minor edits

EricFromCanada/code-prettify,codygray/code-prettify,AutoIt/code-prettify,EricFromCanada/code-prettify,codygray/code-prettify,codygray/code-prettify,EricFromCanada/code-prettify,AutoIt/code-prettify,LogtalkDotOrg/code-prettify,googlearchive/code-prettify,googlearchive/code-prettify,LogtalkDotOrg/code-prettify,googlearchive/code-prettify,AutoIt/code-prettify,LogtalkDotOrg/code-prettify