string_search: fix missing documentation warnings

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/lib/standard/string_search.nit b/lib/standard/string_search.nit
index 9b1fb8a..47bdbc8 100644 (file)
--- a/lib/standard/string_search.nit
+++ b/lib/standard/string_search.nit
@@ -85,6 +85,7 @@ interface Pattern
                return res
        end
 
+       # Is `self` in `s`?
        protected fun is_in(s: Text): Bool do return search_index_in(s, 0) != -1
 end