Fix cperl list indentation problem

* lisp/progmodes/cperl-mode.el (cperl-calculate-indent): Indent
foo:bar() in lists correctly (bug#57829).

lisp/progmodes/cperl-mode.el

@@ -3016,7 +3016,7 @@ and closing parentheses and brackets."
 	       ;; Now it is a hash reference
 	       (+ cperl-indent-level cperl-close-paren-offset))
 	     ;; Labels do not take :: ...
-	     (if (looking-at "\\(\\w\\|_\\)+[ \t]*:")
+	     (if (looking-at "\\(\\w\\|_\\)+[ \t]*:[^:]")
 		 (if (> (current-indentation) cperl-min-label-indent)
 		     (- (current-indentation) cperl-label-offset)
 		   ;; Do not move `parse-data', this should

test/lisp/progmodes/cperl-mode-resources/cperl-indents.erts

@@ -0,0 +1,26 @@
+Code:
+  (lambda ()
+    (cperl-mode)
+    (indent-region (point-min) (point-max)))
+
+Name: cperl-indent1
+
+=-=
+{
+  print "",
+    "",
+    foo::bar(),
+    "";
+}
+=-=-=
+
+Name: cperl-indents1
+
+=-=
+{
+  print "",
+    "",
+    foobar(),
+    "";
+}
+=-=-=

test/lisp/progmodes/cperl-mode-tests.el

@@ -1103,4 +1103,7 @@ as a regex."
     (funcall cperl-test-mode)
     (should-not (nth 3 (syntax-ppss 3)))))
 
+(ert-deftest test-indentation ()
+  (ert-test-erts-file (ert-resource-file "cperl-indents.erts")))
+
 ;;; cperl-mode-tests.el ends here