Merge branch 'lo/repo-leftover-bits'

Clean-up the code around "git repo info" command. * lo/repo-leftover-bits: Documentation/git-repo: capitalize format descriptions Documentation/git-repo: replace 'NUL' with '_NUL_' t1901: adjust nul format output instead of expected value t1900: rename t1900-repo to t1900-repo-info repo: rename struct field to repo_info_field repo: replace get_value_fn_for_key by get_repo_info_field repo: rename repo_info_fields to repo_info_field CodingGuidelines: instruct to name arrays in singular