Merge commits '14e56970 1605b02f cd49c57e 453949ab 57315a69 97de5120 c5da3bde 99ab4a10 d071aa56 1d146ac3 322d0a43 c7a7f732 ac561601 dfe042fe 3019186a 95e68158 10f546a2 c0a2aba0 ' into temp-merge-1811

src/ctime_tests.c

@@ -57,7 +57,7 @@ int main(void) {
 
     if (!SECP256K1_CHECKMEM_RUNNING()) {
         fprintf(stderr, "This test can only usefully be run inside valgrind because it was not compiled under msan.\n");
-        fprintf(stderr, "Usage: libtool --mode=execute valgrind ./ctime_tests\n");
+        fprintf(stderr, "Usage: valgrind ./ctime_tests (or with Autotools: libtool --mode=execute valgrind ./ctime_tests)\n");
         return EXIT_FAILURE;
     }
     ctx = secp256k1_context_create(SECP256K1_CONTEXT_DECLASSIFY);