Avoid test failures if directory name looks like a regexp

Taken from <https://sources.debian.org/patches/emacs/1:26.1+1-1>
* test/lisp/ibuffer-tests.el (ibuffer-filter-inclusion-3):
* test/lisp/net/tramp-tests.el (tramp-test42-remote-load-path):
Regexp-quote file names to avoid failures with directory names
of the form "build/emacs-i87jK3/emacs-26.1+1/...".

1 files changed, 3 insertions, 2 deletions

diff --git a/test/lisp/net/tramp-tests.el b/test/lisp/net/tramp-tests.el
index 8f810818af1..19edec214f7 100644
--- a/test/lisp/net/tramp-tests.el
+++ b/test/lisp/net/tramp-tests.el
@@ -4773,8 +4773,9 @@ process sentinels.  They shall not disturb each other."
      (string-match
       (format
        "Loading %s"
-       (expand-file-name
-        "tramp-cmds" (file-name-directory (locate-library "tramp"))))
+       (regexp-quote
+        (expand-file-name
+         "tramp-cmds" (file-name-directory (locate-library "tramp")))))
       (shell-command-to-string
        (format
         "%s -batch -Q -L %s -l tramp-sh --eval %s"