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-rw-r--r--doc/emacs/custom.texi8
1 files changed, 5 insertions, 3 deletions
diff --git a/doc/emacs/custom.texi b/doc/emacs/custom.texi
index 87290734cc9..9bbef7dd508 100644
--- a/doc/emacs/custom.texi
+++ b/doc/emacs/custom.texi
@@ -1349,9 +1349,11 @@ be permanently ignored, customize @code{ignored-local-variable-values}.
way Emacs processes local variables. Its default value is @code{t},
which specifies the behavior described above. If it is @code{nil},
Emacs simply ignores all file local variables. @code{:safe} means use
-only the safe values and ignore the rest. Any other value says to
-query you about each file that has local variables, without trying to
-determine whether the values are known to be safe.
+only the safe values and ignore the rest. @code{:all} instructs Emacs
+to set all file local variables (we advise not to use it permanently).
+Any other value says to query you about each file that has local
+variables, without trying to determine whether the values are known to
+be safe.
@vindex enable-local-eval
@vindex safe-local-eval-forms