thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; Two (inbox tag4 tag5 unread)"
# generate a common input file for the next several tests.
thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; Two (inbox tag4 tag5 unread)"
# generate a common input file for the next several tests.