diff --git a/src/tst/util.hxx b/src/tst/util.hxx
index 777b1bf..ac6cd90 100644
--- a/src/tst/util.hxx
+++ b/src/tst/util.hxx
@@ -51,8 +51,13 @@ struct full_id {
 
 inline bool is_valid_id_char(char c)
 {
-	return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || c == '_' || c == '['
-		|| c == ']';
+	return //
+		('a' <= c && c <= 'z') || //
+		('A' <= c && c <= 'Z') || //
+		('0' <= c && c <= '9') || //
+		c == '_' || //
+		c == '[' || //
+		c == ']';
 }
 
 void validate_id(std::string_view id);
diff --git a/tool-configs b/tool-configs
index 7ff87c4..77ac560 160000
--- a/tool-configs
+++ b/tool-configs
@@ -1 +1 @@
-Subproject commit 7ff87c49a0f3e40c92bc1207f0f375aed2ce8752
+Subproject commit 77ac56047405a2184f9ceed6e91f67bcd01a297a