Remove (or double) redundant backslashes in string literals

See discussion at
https://lists.gnu.org/archive/html/emacs-devel/2020-01/msg00749.html .

* lisp/obsolete/iswitchb.el (iswitchb-summaries-to-end):
* test/src/regex-emacs-tests.el (regex-tests-BOOST-frob-escapes):
* test/lisp/help-fns-tests.el (help-fns-test-lisp-macro)
(help-fns-test-lisp-defun, help-fns-test-lisp-defsubst)
(help-fns-test-alias-to-defun, help-fns-test-bug23887):
Double backslashes for desired effect.
* lisp/org/ol.el (org-link-escape):
* lisp/net/nsm.el (nsm-protocol-check--rsa-kx)
(nsm-protocol-check--anon-kx, nsm-protocol-check--sha1-sig):
* lisp/obsolete/old-whitespace.el (whitespace-buffer):
* lisp/obsolete/rcompile.el (remote-compile-run-before):
* lisp/obsolete/vi.el (vi-end-of-blank-delimited-word):
* lisp/obsolete/vip.el (vip-current-major-mode)
(vip-paren-match, vip-switch-to-buffer)
(vip-switch-to-buffer-other-window, vip-kill-buffer)
(vip-get-ex-token, ex-edit):
* lisp/org/org-element.el (org-element--cache-sync-requests):
* lisp/org/org.el (org-sparse-tree):
* lisp/textmodes/reftex.el (reftex-report-bug):
* test/lisp/ibuffer-tests.el (ibuffer-save-filters):
* test/lisp/international/ucs-normalize-tests.el
(ucs-normalize-tests--insert-failing-lines):
* test/lisp/simple-tests.el (undo-test-kill-c-a-then-undo):
* test/lisp/textmodes/conf-mode-tests.el (conf-test-toml-mode):
* test/src/regex-emacs-tests.el (regex-tests-compare):
Remove redundant backslashes.

1 files changed, 3 insertions, 3 deletions

diff --git a/lisp/net/nsm.el b/lisp/net/nsm.el
index 1b0f04e5a19..2d36c5e2571 100644
--- a/lisp/net/nsm.el
+++ b/lisp/net/nsm.el
@@ -371,7 +371,7 @@ Reference:
 Sheffer, Holz, Saint-Andre (May 2015).  \"Recommendations for Secure
 Use of Transport Layer Security (TLS) and Datagram Transport Layer
 Security (DTLS)\", \"(4.1.  General Guidelines)\"
-`https://tools.ietf.org/html/rfc7525\#section-4.1'"
+`https://tools.ietf.org/html/rfc7525#section-4.1'"
   (let ((kx (plist-get status :key-exchange)))
     (and (string-match "^\\bRSA\\b" kx)
          (format-message
@@ -468,7 +468,7 @@ Reference:
 
 GnuTLS authors (2018). \"GnuTLS Manual 4.3.3 Anonymous
 authentication\",
-`https://www.gnutls.org/manual/gnutls.html\#Anonymous-authentication'"
+`https://www.gnutls.org/manual/gnutls.html#Anonymous-authentication'"
   (let ((kx (plist-get status :key-exchange)))
     (and (string-match "\\bANON\\b" kx)
          (format-message
@@ -603,7 +603,7 @@ References:
 full SHA-1\", `https://shattered.io/static/shattered.pdf'
 [2]: Chromium Security Education TLS/SSL.  \"Deprecated and Removed
 Features (SHA-1 Certificate Signatures)\",
-`https://www.chromium.org/Home/chromium-security/education/tls\#TOC-SHA-1-Certificate-Signatures'
+`https://www.chromium.org/Home/chromium-security/education/tls#TOC-SHA-1-Certificate-Signatures'
 [3]: Jones J.C (2017).  \"The end of SHA-1 on the Public Web\",
 `https://blog.mozilla.org/security/2017/02/23/the-end-of-sha-1-on-the-public-web/'
 [4]: Apple Support (2017).  \"Move to SHA-256 signed certificates to