lib/file: remove all trailing / on String::dirname

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/lib/standard/file.nit b/lib/standard/file.nit
index 4ba20a0..b23e86c 100644 (file)
--- a/lib/standard/file.nit
+++ b/lib/standard/file.nit
@@ -263,7 +263,7 @@ redef class String
        fun dirname: String
        do
                var l = _length - 1 # Index of the last char
-               if l > 0 and self.chars[l] == '/' then l -= 1 # remove trailing `/`
+               while l > 0 and self.chars[l] == '/' do l -= 1 # remove all trailing `/`
                var pos = last_index_of_from('/', l)
                if pos > 0 then
                        return substring(0, pos)