pangram: Slim down descriptions to generate better test identifiers  (#1533)
pangram: Slim down descriptions to generate better test identifiers  (#1533)

The purpose of the "description" field is to derive identifiers for naming generated test methods, but some descriptions have tended to verbosity ending up with long identifiers (up to 150 characters). Such long method names are harder for students to work with and also are awkward for some IDE GUIs.

Issue #1473 proposed adding a separate "identifier" field, but I was required to first try improving "descriptions" to better suit "identifier" generation. This PR aims to slim down the generated identifiers without losing substantive information about the test.

To start with, "Check if the given string is a pangram" is a rather banal redundant description unworthy of nesting.
petertseng/x-common,petertseng/x-common,exercism/x-common,jmluy/x-common,exercism/x-common,jmluy/x-common,jmluy/x-common,ErikSchierboom/x-common,ErikSchierboom/x-common