Add crossref to set-default-file-modes docstring

* src/fileio.c (Fset_default_file_modes): Doc fix; add to the
docstring a cross-reference to with-file-modes.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/fileio.c b/src/fileio.c
index 663d89b9dfc..63f4e698528 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -3551,7 +3551,9 @@ in the permissions of newly created files will be disabled.
 
 Note that when `write-region' creates a file, it resets the
 execute bit, even if the mask set by this function allows that bit
-by having the corresponding bit in the mask reset.  */)
+by having the corresponding bit in the mask reset.
+
+See also `with-file-modes'.  */)
   (Lisp_Object mode)
 {
   mode_t oldrealmask, oldumask, newumask;