readutmp tests: Fix link error

[Bruno Haible]

On OpenBSD 7.2, with GNU gettext installed, in a coreutils build, I see this
link error:

  CCLD     test-readutmp
ld: error: undefined symbol: libintl_gettext
>>> referenced by xalloc-die.c:34 (../lib/xalloc-die.c:34)
>>>               libcoreutils_a-xalloc-die.o:(xalloc_die) in archive 
>>> ../lib/libcoreutils.a
>>> referenced by error.c:194 (../lib/error.c:194)
>>>               libcoreutils_a-error.o:(error_tail) in archive 
>>> ../lib/libcoreutils.a
cc: error: linker command failed with exit code 1 (use -v to see invocation)

This patch fixes it.


2023-08-11  Bruno Haible  <bruno@clisp.org>

        readutmp tests: Fix link error.
        * modules/readutmp-tests (Makefile.am): Link test-readutmp with
        $(LIBINTL).

diff --git a/modules/readutmp-tests b/modules/readutmp-tests
index 06f06a7c3c..5543b30fac 100644
--- a/modules/readutmp-tests
+++ b/modules/readutmp-tests
@@ -11,4 +11,4 @@ configure.ac:
 Makefile.am:
 TESTS += test-readutmp
 check_PROGRAMS += test-readutmp
-test_readutmp_LDADD = $(LDADD) @READUTMP_LIB@
+test_readutmp_LDADD = $(LDADD) @READUTMP_LIB@ $(LIBINTL)