patch 8.2.1060: not all elinks files are recognized

Problem:    Not all elinks files are recognized.
Solution:   Just check for "elinks.conf". (Guido Cella, closes #6337)

src/testdir/test_filetype.vim

@@ -150,7 +150,7 @@ let s:filename_checks = {
     \ 'dylanlid': ['file.lid'],
     \ 'ecd': ['file.ecd'],
     \ 'edif': ['file.edf', 'file.edif', 'file.edo'],
-    \ 'elinks': ['/etc/elinks.conf', '/.elinks/elinks.conf'],
+    \ 'elinks': ['elinks.conf'],
     \ 'elm': ['file.elm'],
     \ 'elmfilt': ['filter-rules'],
     \ 'erlang': ['file.erl', 'file.hrl', 'file.yaws'],