Merge branch 'rs/simple-cleanups' into maint

Merge branch 'rs/simple-cleanups' into maint

Code cleanups.

* rs/simple-cleanups:
  sha1_name: use strlcpy() to copy strings
  pretty: use starts_with() to check for a prefix
  for-each-ref: use skip_prefix() to avoid duplicate string comparison
  connect: use strcmp() for string comparison