file: fix missing documentation warnings

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

diff --git a/lib/standard/file.nit b/lib/standard/file.nit
index fb89882..d5c1fd1 100644 (file)
--- a/lib/standard/file.nit
+++ b/lib/standard/file.nit
@@ -38,6 +38,7 @@ abstract class FStream
        # The FILE *.
        private var file: nullable NativeFile = null
 
+       # The status of a file. see POSIX stat(2).
        fun file_stat: FileStat do return _file.file_stat
 
        # File descriptor of this file
@@ -144,6 +145,7 @@ end
 
 ###############################################################################
 
+# Standard input stream.
 class Stdin
        super IFStream
 
@@ -156,6 +158,7 @@ class Stdin
        redef fun poll_in: Bool is extern "file_stdin_poll_in"
 end
 
+# Standard output stream.
 class Stdout
        super OFStream
        init do
@@ -165,6 +168,7 @@ class Stdout
        end
 end
 
+# Standard error stream.
 class Stderr
        super OFStream
        init do