* test/lisp/net/tramp-tests.el (tramp-test16-file-expand-wildcards)
(tramp-test26-interactive-file-name-completion):
Prefer #'string-lessp over 'string<.
(tramp--test-ange-ftp-p, tramp-test47-read-password)
(tramp-test47-read-otp-password): Use function read syntax.