Fix one more 2019-08-04 regex lint

Problem clarified by Mattias Engdegård in:
https://lists.gnu.org/r/emacs-devel/2019-08/msg00087.html
* lisp/isearch.el (isearch-symbol-regexp):
Remove \s@ from regexp as it cannot match.

1 files changed, 9 insertions, 6 deletions

diff --git a/lisp/isearch.el b/lisp/isearch.el
index 97c75b2978b..09729034d74 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -2184,16 +2184,19 @@ matches arbitrary non-symbol whitespace.  Otherwise if LAX is non-nil,
 the beginning or the end of the string need not match a symbol boundary."
   (let ((not-word-symbol-re
          ;; This regexp matches all syntaxes except word and symbol syntax.
-         ;; FIXME: Replace it with something shorter if possible (bug#14602).
-         "\\(?:\\s-\\|\\s.\\|\\s(\\|\\s)\\|\\s\"\\|\\s\\\\|\\s/\\|\\s$\\|\\s'\\|\\s<\\|\\s>\\|\\s@\\|\\s!\\|\\s|\\)+"))
+         "\\(?:\\s-\\|\\s.\\|\\s(\\|\\s)\\|\\s\"\\|\\s\\\\|\\s/\\|\\s$\\|\\s'\\|\\s<\\|\\s>\\|\\s!\\|\\s|\\)+"))
     (cond
      ((equal string "") "")
-     ((string-match-p (format "\\`%s\\'" not-word-symbol-re) string) not-word-symbol-re)
+     ((string-match-p (format "\\`%s\\'" not-word-symbol-re) string)
+      not-word-symbol-re)
      (t (concat
-         (if (string-match-p (format "\\`%s" not-word-symbol-re) string) not-word-symbol-re
+         (if (string-match-p (format "\\`%s" not-word-symbol-re) string)
+             not-word-symbol-re
            "\\_<")
-         (mapconcat 'regexp-quote (split-string string not-word-symbol-re t) not-word-symbol-re)
-         (if (string-match-p (format "%s\\'" not-word-symbol-re) string) not-word-symbol-re
+         (mapconcat 'regexp-quote (split-string string not-word-symbol-re t)
+                    not-word-symbol-re)
+         (if (string-match-p (format "%s\\'" not-word-symbol-re) string)
+             not-word-symbol-re
            (unless lax "\\_>")))))))
 
 ;; Search with lax whitespace