Test-cover for the last three lines of vct.h

lib/libvarnish/vct.c

@@ -303,11 +303,16 @@ int
 main(int argc, char **argv)
 {
 	int i;
+	const char *p;
+
 	(void)argc;
 	(void)argv;
 
 	AN(setlocale(LC_ALL, "C"));
 
+	p = "";
+	assert(vct_iscrlf(p, p) == 0);
+
 	for (i = 0x20; i < 0x7f; i++)
 		assert(vct_lowertab[i] == tolower(i));
 
@@ -329,6 +334,10 @@ main(int argc, char **argv)
 	assert(vct_caselencmp("AZaz ", "azAY", 5) > 0);
 	assert(vct_caselencmp("AZay ", "azAZ", 5) < 0);
 
+	assert(vct_caselencmp("AZaz", "azAZ1", 5) < 0);
+	assert(vct_caselencmp("AZaz1", "azAZ", 5) > 0);
+
+
 	assert(vct_caselencmp("A", "B", 0) == 0);
 
 	return (0);