Codechange: Stringify config file paths.

src/ini_load.cpp

@@ -192,7 +192,7 @@ void IniLoadFile::RemoveGroup(const char *name)
  * @param subdir the sub directory to load the file from.
  * @pre nothing has been loaded yet.
  */
-void IniLoadFile::LoadFromDisk(const char *filename, Subdirectory subdir)
+void IniLoadFile::LoadFromDisk(const std::string &filename, Subdirectory subdir)
 {
 	assert(this->last_group == &this->group);
 
@@ -204,7 +204,7 @@ void IniLoadFile::LoadFromDisk(const char *filename, Subdirectory subdir)
 	uint comment_alloc = 0;
 
 	size_t end;
-	FILE *in = this->OpenFile(filename, subdir, &end);
+	FILE *in = this->OpenFile(filename.c_str(), subdir, &end);
 	if (in == nullptr) return;
 
 	end += ftell(in);