lib-storage: Fix -Wimplicit-fallthrough compiler warning

diff --git a/src/lib-storage/index/index-search.c b/src/lib-storage/index/index-search.c
index e53b297729d4a0adff68d4d76a07c0d723ff34c3..4107cf9365ca2cf067eb1715ab5dd2338f8f6954 100644 (file)
--- a/src/lib-storage/index/index-search.c
+++ b/src/lib-storage/index/index-search.c
@@ -381,8 +381,7 @@ static int search_arg_match_cached(struct index_search_context *ctx,
                case SEARCH_SINCE:
                        return date >= arg->value.time ? 1 : 0;
                default:
-                       /* unreachable */
-                       break;
+                       i_unreached();
                }
 
        /* sizes */