[test/ldap source] better source naming, some cleanups (prepares #2528116)
ldap uri becomes "ldap" in all cases
prepare separation of CONFIGs by source type
msgid ""
msgstr ""
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"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Generated-By: pygettext.py 1.5\n"
"Plural-Forms: nplurals=2; plural=(n > 1);\n"