Fix comment typo re malloc

Problem reported by Bruno Haible in:
https://lists.gnu.org/r/bug-gnulib/2024-11/msg00048.html

diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4
index 9d5f5bb8c91049ef58b936196e70d676938e7e93..d7f389ac8ef0e139a832483c4afbfcc4929caeaf 100644 (file)
--- a/lib/autoconf/functions.m4
+++ b/lib/autoconf/functions.m4
@@ -970,7 +970,7 @@ fi
 
 # _AC_FUNC_MALLOC_IF(IF-WORKS, IF-NOT[, UNKNOWN-ASSUME])
 # ------------------------------------------------------
-# If 'malloc (0, 0)' returns nonnull, run IF-WORKS, otherwise, IF-NOT.
+# If 'malloc (0)' returns nonnull, run IF-WORKS, otherwise, IF-NOT.
 # If it is not known whether it works, assume the shell word UNKNOWN-ASSUME,
 # which should end in "yes" or in something else (the latter is the default).
 AC_DEFUN([_AC_FUNC_MALLOC_IF],