basic/conf-files: extend conf_files_list() to list unsuffixed files

5dd11ab5f36ce71138005 did a similar change for conf_files_list_strv().
Here we do the same for conf_files_list() and conf_files_list_nulstr().

No change for existing users. Tests are added.

diff --git a/src/basic/conf-files.c b/src/basic/conf-files.c
index 950bdf53dee75c597ccc3b1071c701dfa81c5970..b953029638d99af9119f0090e83d695ff9673282 100644 (file)
--- a/src/basic/conf-files.c
+++ b/src/basic/conf-files.c
@@ -141,7 +141,6 @@ int conf_files_list(char ***strv, const char *suffix, const char *root, const ch
         va_list ap;
 
         assert(strv);
-        assert(suffix);
 
         va_start(ap, dir);
         dirs = strv_new_ap(dir, ap);
@@ -158,7 +157,6 @@ int conf_files_list_nulstr(char ***strv, const char *suffix, const char *root, c
         _cleanup_strv_free_ char **dirs = NULL;
 
         assert(strv);
-        assert(suffix);
 
         dirs = strv_split_nulstr(d);
         if (!dirs)