emacs-27 01212a7: Do setup Flymake in file-less Elisp buffers

[João Távora]

branch: emacs-27
commit 01212a762f2977e1f95036ee37ff3e68a28f467b
Author: João Távora <address@hidden>
Commit: João Távora <address@hidden>

    Do setup Flymake in file-less Elisp buffers
    
    Fixes: bug#40573
    
    * lisp/progmodes/elisp-mode.el (emacs-lisp-mode): Change
    condition for setting flymake-diagnostic-functions.
---
 lisp/progmodes/elisp-mode.el | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lisp/progmodes/elisp-mode.el b/lisp/progmodes/elisp-mode.el
index 2617a6e..f39ecf9 100644
--- a/lisp/progmodes/elisp-mode.el
+++ b/lisp/progmodes/elisp-mode.el
@@ -264,9 +264,9 @@ Blank lines separate paragraphs.  Semicolons start comments.
   (unless
       (let* ((bfname (buffer-file-name))
              (fname (and (stringp bfname) (file-name-nondirectory bfname))))
-        (or (not (stringp fname))
-            (string-match "\\`\\.#" fname)
-            (string-equal dir-locals-file fname)))
+        (and (stringp fname)
+             (or (string-match "\\`\\.#" fname)
+                 (string-equal dir-locals-file fname))))
     (add-hook 'flymake-diagnostic-functions #'elisp-flymake-checkdoc nil t)
     (add-hook 'flymake-diagnostic-functions
               #'elisp-flymake-byte-compile nil t)))