Fix reading of custom TLD w/o new line at EOF

Fixes: #28177

src/Common/TLDListsHolder.cpp

@@ -64,7 +64,8 @@ size_t TLDListsHolder::parseAndAddTldList(const std::string & name, const std::s
     while (!in.eof())
     {
         readEscapedStringUntilEOL(line, in);
-        ++in.position();
+        if (!in.eof())
+            ++in.position();
         /// Skip comments
         if (line.size() > 2 && line[0] == '/' && line[1] == '/')
             continue;

tests/config/config.d/top_level_domains_lists.xml

@@ -1,5 +1,6 @@
 <yandex>
     <top_level_domains_lists>
         <public_suffix_list>public_suffix_list.dat</public_suffix_list>
+        <no_new_line_list>no_new_line_list.dat</no_new_line_list>
     </top_level_domains_lists>
 </yandex>

tests/config/top_level_domains/no_new_line_list.dat

@@ -0,0 +1 @@
+foo.bar

tests/queries/0_stateless/01601_custom_tld.reference

@@ -28,3 +28,7 @@ foo
 -- vector
 xx.blogspot.co.at
 
+-- no new line
+foo.bar
+a.foo.bar
+foo.baz

tests/queries/0_stateless/01601_custom_tld.sql

@@ -37,3 +37,8 @@ select cutToFirstSignificantSubdomainCustom('http://www.foo', 'public_suffix_lis
 select '-- vector';
 select cutToFirstSignificantSubdomainCustom('http://xx.blogspot.co.at/' || toString(number), 'public_suffix_list') from numbers(1);
 select cutToFirstSignificantSubdomainCustom('there-is-no-such-domain' || toString(number), 'public_suffix_list') from numbers(1);
+
+select '-- no new line';
+select cutToFirstSignificantSubdomainCustom('foo.bar', 'no_new_line_list');
+select cutToFirstSignificantSubdomainCustom('a.foo.bar', 'no_new_line_list');
+select cutToFirstSignificantSubdomainCustom('a.foo.baz', 'no_new_line_list');