The mailmap mechanism unnecessarily downcased the e-mail addresses
in the output, and also ignored the human name when it is a single
character name.
This now has become Eric Sunshine's series, even though it still is
under jc/ hierarchy.
* jc/mailmap-case-insensitivity:
mailmap: style fixes
mailmap: debug: avoid passing NULL to fprintf() '%s' conversion specification
mailmap: debug: eliminate -Wformat field precision type warning
mailmap: debug: fix malformed fprintf() format conversion specification
mailmap: debug: fix out-of-order fprintf() arguments
mailmap: do not downcase mailmap entries
t4203: demonstrate loss of uppercase characters in canonical email
mailmap: do not lose single-letter names
t4203: demonstrate loss of single-character name in mailmap entry