[nongnu] elpa/zig-mode 905917322b: Add `comment-start-skip`

[ELPA Syncer]

branch: elpa/zig-mode
commit 905917322b8b5f191593c66b5f26dd347fe1290d
Author: Erik Arvstedt <erik.arvstedt@gmail.com>
Commit: Joachim Schmidt <joachim.schmidt557@outlook.com>

    Add `comment-start-skip`
    
    This fixes many builtin comment-related functions (`newcomment.el`) that
    depend on this variable.
    
    This also fixes test `test-font-lock-comments` on Emacs 28:
    In Emacs 28, `comment-start-skip` is assigned a default value based on
    `comment-start`, which results in comment delimiters (//) being
    fontified with `font-lock-comment-delimiter-face`.
---
 tests.el    | 6 ++++--
 zig-mode.el | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/tests.el b/tests.el
index e0ef563593..60a4caf3ea 100644
--- a/tests.el
+++ b/tests.el
@@ -61,9 +61,11 @@ const string =
 // This is a normal comment\n
 /// This is a doc comment\n
 //// This is a normal comment again\n"
-   '(("// This is a normal comment\n" font-lock-comment-face)
+   '(("// " font-lock-comment-delimiter-face)
+     ("This is a normal comment\n" font-lock-comment-face)
      ("/// This is a doc comment\n" font-lock-doc-face)
-     ("//// This is a normal comment again\n" font-lock-comment-face))))
+     ("//// " font-lock-comment-delimiter-face)
+     ("This is a normal comment again\n" font-lock-comment-face))))
 
 (ert-deftest test-font-lock-decl-const ()
   (zig-test-font-lock
diff --git a/zig-mode.el b/zig-mode.el
index 4064605557..3baee90932 100644
--- a/zig-mode.el
+++ b/zig-mode.el
@@ -529,6 +529,7 @@ This is written mainly to be used as 
`end-of-defun-function' for Zig."
 \\{zig-mode-map}"
   :group 'zig-mode
   (setq-local comment-start "// ")
+  (setq-local comment-start-skip "//+ *")
   (setq-local comment-end "")
   (setq-local electric-indent-chars
               (append zig-electric-indent-chars