[PATCH] tests/cmdline: De-string-ify other scripts

Hello,

This is the follow-up to r21269 which was approved by djames. Please
find attached a patch to De-string-ify remaining scripts.

[[
Patch by: bhuvan

[in subversion/tests/cmdline]
* import_tests.py
  (global): Do not import "string" library.
  (import_executable, import_ignores, import_no_ignores): Fix uses of
  deprecated string methods.
* autoprop_tests.py
  (global): Do not import "string" library.
  (check_proplist): Fix uses of deprecated string method.
* basic_tests.py
  (global): Do not import "string" library.
  (basic_import, basic_add_no_ignores, uri_syntax): Fix uses of
  deprecated string methods.
]]

-- 
Regards,
Bhuvaneswaran