posix vapi: fgets() can return NULL

diff --git a/vapi/posix.vapi b/vapi/posix.vapi
index 375ffb4e841ec636a171b48f315a018b65182a10..9737101f8fe88e91c777964687ad69ff56f0bcf1 100644 (file)
--- a/vapi/posix.vapi
+++ b/vapi/posix.vapi
@@ -2324,7 +2324,7 @@ namespace Posix {
                [CCode (cname = "fgetc")]
                public int getc ();
                [CCode (cname = "fgets", instance_pos = -1)]
-               public unowned string gets (char[] s);
+               public unowned string? gets (char[] s);
                [CCode (cname = "feof")]
                public bool eof ();
                [CCode (cname = "fscanf"), ScanfFormat]